Mathematics College

Please please help me!!!!!

Answers

Answer 1

Answer:

(12, 487)

Step-by-step explanation:

y = 3.7x + 442 ----› Eqn. 1

y = 14.4x + 312 ----› Eqn. 2

Substitute y = (3.7x + 442) into eqn. 2.

y = 14.4x + 312 ----› Eqn. 2

3.7x + 442 = 14.4x + 312

Collect like terms

3.7x - 14.4x = -442 + 312

-10.7x = -130

Divide both sides by -10.7

x = 12.1495327

Substitute x = 12.1495327 into eqn. 1.

y = 3.7x + 442 ----› Eqn. 1

y = 3.7(12.1495327) + 442

y = 486.953271

The solution to the system is rounded to the nearest integer:

(12, 487)

Related Questions

Please need help on this one

Answers

Answer:

ΔEFD and ΔXYZ

Find the measures of two complementary angles if the difference in their measures is 16.

Answers

Answer:

One of the angles is 53 degrees and the other is 37 degrees.

Step-by-step explanation:

Let x be equal to the measure of the first angle.

Let y be equal to the measure of the second angle.

Because x and y are complementary, they add up to 90 degrees.

x+y=90

The question tells us that x and y have a difference of 16.

x-y=16

Now that we have our two equations, we can use the method of elimination to find the value of x (process is in the picture attached). We do this by adding the two equations since y will cancel out.

x=53

Finally, we can plug x back into either of the original equations to find the value of y.

x+y=90

53+y=90

Subtract both sides by 53 to isolate y

53+y-53=90-53

y=37

I hope this helps!

Without graphing, classify each system
independent, dependent, or inconsistent

15x = 10y - 20
18 + 9x = 6y

Answers

Answer:

Inconsistent

Step-by-step explanation:

None

Which point lies on the y-axis?

Answers

Answer:

(0,2)

Step-by-step explanation:

What the slope of the line on the graph please help me

Answers

Answer: y=-3/7x+3

Step-by-step explanation:

I gave you the intercept form of slope as well, although you did not ask for it.

Your line angled downwards (reading it left to right) meaning that your slope is negative. Your slope also goes down by 3 and to the right by 7, which is where your 'rise over run' is acquired from.

Rise over run (slope), when positive, is either up/right or down/left

Rise over run (slope), when negative, is either down/right or up/left

Hope this helps.

A hot air balloon can hold up to 300 pounds of weight. The balloon's pilot weighs 140 pounds. How many 20-pound bags of sand (b) can also be carried by the hot air balloon? Select three options.

A -2

B 0

C 5

D 8

E 10

Answers

Answer:

Step-by-step explanation:

300 - 140 = 160 so 160 divided by 20 is 8

Answer:

8, 0, 10

Step-by-step explanation:

area of a triangle is 240 centimetre square and its base is 20 CM then find its height of the triangle

Answers

area would have to be a number

A bakery sells 6 rolls for $1.50. If this relationship is graphed with the number of rolls on the x-axis and the cost on the y-axis, what is the slope of the graph in dollars per roll?

Answers

Answer:0.25

Step-by-step explanation: 1.50÷6

The slope of the graph in dollars per roll is 0.25.

What is the slope of a line?

The slope of a line indicates the direction and the steepness of the line.

Given that, the bakery sells 6 rolls for $1.50.

The slope of the line in dollars per roll is given by:

(total cost)/(total roll)

= 1.50/6

= 0.25

Hence, the slope of the graph in dollars per roll is 0.25.

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Which situation could NOT represent a proportional relationship?

Answers

Answer:

The weight in w weeks of a baby that gains 1.5 pounds per month if her starting weight is 7.5 pounds.

Step-by-step explanation:

2.5∙0.04∙250∙8∙1.25∙789

Answers

Answer:

197,250

Step-by-step explanation:

2.5 * 0.04 * 250 * 8 * 1.25 * 789

0.1 * 250 * 8 * 1.25 * 789

25 * 8 * 1.25 * 789

200 * 1.25 * 789

250 * 789

789/4 * 1000

197.25 * 1000

197,250

2%10×105+10×11%190÷178

Answers

Answer:

31.0003

Step-by-step explanation:

Use BODMAS: Brackets Of Divison Multiplication Addition and Subtraction

i) Division

11/190 / 178 =11/33820

ii) Multiplication

2/10 * 105 =21

iii) Add

21 + 10 + 11/33820 = 31.0003...

Are you sure This Question is not ambiguous?

I used my calculator to do the calculations. Can't convert to a fraction.

Someone pls show there work give extra points

Answers

Answer: C/pi=d

Step-by-step explanation: You could think of it like a one or two step equation. For example: 12=3x solve for x. You would do 12/3=4. Same thing here, C=pi*d= C/pi.

evaluate (11 + 4) ÷ 3 x √64 =

Answers

Step-by-step explanation:

=(11+4)÷3×√64

=15÷3×8

=5×8

=40

hope it helps

There are x diamonds in the right showcase at a
jewelry store. There are y diamonds in the left
showcase. The right showcase has 16 more than
4 times as many diamonds as the left showcase.
What is the value of y, in terms of x ?
E.x1/4-4
F.1/4x+4
G.x+15
H.4x+4

Answers

Answer:

H.4x+4

Step-by-step explanation:

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PLEASE ANSWER THIS QUESTION RIGHT PLEASE Nyah is tossing a ball with her younger cousin Gideon The height of the ball in feet, H (t) The time in seconds T that the ball is in the air are represented on the given graph.Which of the following statements are true?

Answers

Answer:

the 4th it hits 10 after 2 seconds

Step-by-step explanation:

the ball starts at (6,0) feet/height 0 seconds, then is thrown, at the slope/ top is where the ball accelerated or went the highest is (10,2) ten feet, two seconds, and was able to stay in the air for 6 and ends at (0,6 1/8) 0 feet and 6 1/8 seconds, that is why the the slope curves down, showing that the ball has landed but this is not exactly 6 seconds. hope this helps

pls answer all the questions

Answers

the angles are equal to each other in the order they are written. for example, on number one angle x is congruent to angle k and angle y is congruent to angle l and angle z is congruent to angle j

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yeaaa free coins

I DONT CARE

Step-by-step explanation:

A car dealerships sells cars for c dollars. They then apply a 12% markup to all of the cars. Which of the following expression can be used to calculate the
new price of the cars? Select all that apply.
c(12)
c(.12)
c(1.12)
c+ c(.12)

Answers

Answer:

c(1.12)

Step-by-step explanation:

A submarine is 4,000 feet below sea level, and rising a rate of 100 feet pre minute. Write an equation to represent y, the depth of the submarine after x minutes.

Answers

Answer:

y = 100x - 4000

Step-by-step explanation:

Initial elevation is a starting point, therefore y-intercept is -4000The rate of change is the slope, therefore m = 100

The equation of the linear function is:

y = 100x - 4000

Answer: -4000+100x=y
Explanation: the submarine is 4000 feet BELOW sea level which is why in the equation there is a negative sign. Then the submarine rises 100 feet per minute and the x represents minutes and y is the depth of the submarine.

Find the distance of the line segment below.

Answers

Pythagorean theorem! X distance (we’ll call this a) is 8. Y distance (we’ll call this b) is 6
a^2 + b^2 = c^2
8^2 + 6^ 2 = 52
Sqrt 52 = 7.211 = c where c is the distance of your diagonal line

The _______________ property states: a plus b equals b plus a

1. associative
2. commutative
3. inverse
4. identity

Answers

The 2) commutative property states that A plus B equals B plus A.

What is the commutative property?

The commutative property of addition or multiplication implies that changing the order of numbers for the addition or multiplication operation cannot change the result.

Reordering the addends does not change the outcome of the addition of multiplication operations.

Apart from the commutative property, there are other number properties, including:

Associative propertyDistributive propertyClosure propertyInverse propertyIdentity property.

For instance, 3 + 5 = 8, and 5 + 3 = 8. Agains 3 x 5 = 15, as 5 x 3 = 15.

Thus, the 2) commutative property states that A plus B equals B plus A.

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Work out 1/2 x 7 giving your answer as a mixed number.

Answers

The answer is 3 and 1/2

Evaluate the following expression. 7 1/4 x 2^2 +(8 1/2 -2) ÷ 3

Answers

Answer:

11.83 or 11.8 or 11 4/5

Step-by-step explanation

7.25+4= 29

(8.5-2)= 6.5

(29+6.5)/3 = 35.5/3

11.83

Show that f '(x) = g'(x) for all x in their domains. Can we conclude from the corollary below that f − g is constant? If f '(x) = g'(x) for all x in an interval (a, b), then f − g is constant on (a, b); that is, f(x) = g(x) + c where c is a constant.

Answers

Answer:

Answer: 15 cm

Step-by-step explanation:

The derivative of a function at a point can be defined as its slope at that point. For f'(x) = g'(x) in the interval (a,b), it is proved that f - g is constant in (a,b).

What is a Derivative?

A derivative of a function is its rate change of increase or decrease in a given interval with respect to its variable. Derivative of a constant function is always zero.

Given that, f'(x) = g'(x) for all x.

Taking integral on both sides

f(x) + C₁ = g(x) + C₂

=> f(x) - g(x) = C₂ - C₁

=> f(x) - g(x) = C

Thus, f(x) - g(x) is constant is proved.

Similarly for interval an interval (a,b),

f(x) - g(x) = C

=> f(x)= g(x) + C

Hence, it is proved that in an interval (a,b), if f'(x) = g'(x) then f(x)= g(x) + C.

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What is the inverse of the statement?

A number that has exactly two distinct factors is prime.

If a number has exactly two distinct factors, then the number is prime.
If a number does not have exactly two distinct factors, then the number is not prime.
If a number is not prime, then the number does not have exactly two distinct factors.
If a number is prime, then the number has exactly two distinct factors.

Answers

The inverse statement of "if number that has exactly two distinct factors is prime" is that B. If a number that does not has exactly two distinct factors is not prime"

How to illustrate the information?

Each of the original statements is presupposed to be false in an inverse statement. "If it is not snowing" would be the polar opposite of "If it is snowing." "Then it is not chilly" would be the polar opposite of "then it is cold."

In this case, the inverse statement of "if number that has exactly two distinct factors is prime" is that B. If a number that does not has exactly two distinct factors is not prime.

Therefore, based on the information, the correct option is B.

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Use the fact that 1 inch = 2.54 centimeters to convert 10 yards to centimeters. Round to the nearest tenth

Answers

From unit conversion, it was found that 10 yards = 914.4 cm.

Unit Conversion

The unit of a length is essential information. There are different units for the length. In the International System Units (SI), the standard unit for length is the meter (m). Nonetheless, there are others units, for example: inches (in) and yard (yd).

1 in = 2.54 cm

1 yd = 36 in

The question asks the conversion 10 yards to centimeters. Therefore, you should know the relation between the units for solving this question.

First, you will convert 10 yards to inches. Thus,

1 yd -------- 36 in

10 yd ------- x in

x=36*10

x=360 in

After that, you should find the value in centimeters .

1 in -------- 2.54 cm

360 in --------- x cm

x=360*2.54

x= 914.4 cm

Answers

♡ Answer ♡

♡ Step-by-step explanation ♡

In the problem, it states that Mira leaves a $1.80 tip. At the same time, it is also mentioned that the tip is 20% of the price of breakfast before it. This means that $1.80 is 20% of the price of breakfast before the tip. In order to figure out the price of breakfast before the tip, we must take the 20% tip and make it into 100%. This 100% will be equivalent to the price of breakfast (before the tip).

To transform 20% into 100%, we must multiply by 5. Therefore, to find the price of breakfast before the tip, we must multiply $1.80 by 5. When we do this, we discover that $1.80*5 is $9. $9 is 100% of the price of breakfast before the tip.

So, the price of breakfast before the tip is $9.

A/N (Author's Note): I hope this helps/helped those that may be reading this. Have a fantastic week reader(s)!

Can someone please help this is due at 9

Answers

Answer:

Step-by-step explanation:

We have the final part 4x/40 = 7. We can simplify this to x/10 = 7 by dividing the numerator and the denominator by 4. We then multiply both sides by 10 to get x = 70

PLEASE HELP IM TROUBLED! WILL GIVE BRAINLIEST TO BEST ANSWER! 20 POINTS
Multiplicative inverses (reciprocals) are two number whose product is 1. Which pair of numbers are multiplicative inverses?

Group of answer choices

0 and 1

0.25 and 4

1/2 and 1/2

3 and -3

Answers

Answer:

b .25 x 4 = 1

Step-by-step explanation:

Ruben bought 2 large popcorn buckets and 4 small drinks for $20. Lucia bought 2
large popcorn buckets and 2 small drinks for $14. How much did the large popcorn
cost? The small drink?
Write a system of equations to model this situation where x = the cost of a large
popcorn and y= the cost of a small drink.
O x +y = 34
20 = x + 2y
Oy= 2x + 20
y = 2x + 14
2x + 4y = 20
2x+2y = 14
O x + y = 20
4x + y = 14

Answers

Answer:

4$ for large 3$ for a small

Step-by-step explanation:

Milena is trying to determine an expression to represent the amount of punch she needs to make for her party.
Her expression is 3g + 20. Match the value of g with the correct substituted expressions.
g = 15
g=10
g=38
g=20

3(10)+20
3(20)+20
3(38)+20
3(15)+20

Answers

Answer:

g=15 3(15)+20, g=10 3(10)+20, g=38 3(38), g=20 3(20)+20

Step-by-step explanation:

theres your answer!

eh hi btw-

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