Example 3:
John earned grades 78, 68, 92, and 85 on the four text of the semester. What is the total number of points he
earned on the four tests.

Answers

Answer 1
you can just use a calculator but when you add the numbers all together you get 323
Answer 2
78+68+92+85 = 323 / 4 =80.7 % ( average )

Related Questions

Express square root of 169^5 using rational exponents

Answers

Answer:

The square root is 371293.

Step-by-step explanation:

We solve this question using properties of exponents.

The square root of 169 is 13, so the exponent given can be written as:

[tex]169^{5} = (13^{2})^5 = 13^{10}[/tex]

The square root of [tex]13^{10}[/tex] is given by:

[tex]\sqrt{13^{10}} = 13^{\frac{10}{2}} = 13^5 = 371293[/tex]

The square root is 371293.

Find the slope and the y-intercept of the line.
5x-2y = -4
Write your answers in simplest form.
slope:
Undefined
X
y-intercept: |
?

Answers

Answer:

Slope 'm' = [tex]\frac{5}{2}[/tex]

And y-intercept = 2

Step-by-step explanation:

Slope-intercept form of a line is given by the equation,

y = mx + b --------(1)

Here, m = slope of the line

b = y-intercept

Given equation is,

5x - 2y = -4

2y = 5x + 4

y = [tex]\frac{5}{2}x+2[/tex]

By comparing this equation with equation (1),

Slope 'm' = [tex]\frac{5}{2}[/tex]

And y-intercept = 2

Devon is five years younger than Sydney the sum of their ages is 57 what is Sydney

Answers

Answer:

Sydney is 31 years old.

Step-by-step explanation:

LET age of Devon be x years

and let age of Sydney be y years

if x=y-5-------(i)

x+y= 57 (sum)

Using (i)

(y-5)+y=57

2y=62

y=31

Plz help brainlest if correct

Answers

Answer:

Help with what....????

Step-by-step explanation:

trops have 3 eyes
Bops have 2 eyes
there are 31 eyes altogether
haw many trops were there ?
how many bops were there ?

Answers

Answer:

3 trops

11 bops

Step-by-step explanation:

3×3=9

11×2=22

22+9=31

Pls help best will get Brainliest

Answers

Missing addend: 1/2 + 1/4

Missing Sums: 5/8 and 3/4

Step-by-step explanation:

The pattern of the addend is that the first term increases by 1/8 and the second term is always 1/4. If only the first term increases by 1/8, that means the total sum will increase by 1/8 each time also.

[tex]3/5 of 5/9\\[/tex]

Answers

Answer:

Step-by-step explanation:

[tex] \frac{5}{9} \times \frac{3}{5} [/tex]

[tex] = \frac{1}{3} \times \frac{1}{1} [/tex]

[tex] = \frac{1}{3} [/tex]

Checking:

[tex] \frac{1}{3} \div \frac{3}{5} [/tex]

[tex] = \frac{1}{3} \times \frac{5}{3} [/tex]

[tex] = \frac{5}{9} [/tex]

#CarryOnLearning

Hey there!

When you see the word “of” in mathematical statement, it usually means “multiply” (aka Multiplication)

“3/5 of 5/9”

3/5 • 5/9

MULTIPLY the NUMERATORS (TOP NUMBERS) from each other & also MULTIPLY the DENOMINATORS (BOTTOM NUMBERS) from each other!

3(5) / 5(9)

3(5) = 15 ⬅️ NUMERATOR

5(9) = 45 ⬅️ DENOMINATOR

15/45

The GCF (Greatest Common Factor) for both of your numbers is: 15.. so DIVIDE both the NUMERATOR and DENOMINATOR from 15

15 ÷ 15 / 45 ÷ 15

15 ÷ 15 = 1 ⬅️ NUMERATOR

45 ÷ 15 = 3 ⬅️ DENOMINATOR

Answer: 1/3 ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

Triangle V P M. Angle V is 52 degrees, angle P is 78 degrees, angle M is x degrees. What is the measure of AngleM?

Answers

Answer:

The answer is 50

Step-by-step explanation:

Got it right on edge

Answer:

50 the guy under me got it right on edge 2021

Step-by-step explanation:

Hopes this helps!!! ^^

Which graph represents a proportional relationship?

Answers

Answer:

we need a picture

Step-by-step explanation:

The number of leaves that fall off a tree n days after day 1 is given by the function f (n) = 3(2)".
What does the value 3 mean in this function

Answers

Answer:

the amount of leaves that fall of the tree in one day

Step-by-step explanation:

n is the amount of days

f is the amount of leaves that fall in a day

Solve by elimination
5x+6y= -10
3x-2y= -6

Answers

First equation:Solving for X.

[tex]x = - \frac{2(5 + 3y)}{5} [/tex]

Solving for Y.

[tex]y = - \frac{5(2 + x)}{6} [/tex]

Second equation:

Solving for X.

[tex]x = \frac{2(y - 3)}{3} [/tex]

Solving for Y.

[tex]y = \frac{3(2 + x)}{2} [/tex]

please help due in 10 mins!!

Answers

Answer:

Step-by-step explanation:

C

If pencils sell at 6 for 59¢, how many pencils can be bought for $2.95?

Answers

30

First you divide 2.95 by .59, which is 5.

Then you multiply 6 by 5, and get 30!

I GIVEEEEE BRASINLILST

Answers

Answer:

Answer: Choice G.

Step-by-step explanation:

Dilations

Suppose a point P(x,y) is dilated across the origin, that is, the origin is the center of dilation, by a scale factor k.

The image of P is P' whose coordinates are P'(kx,ky).

If an image is formed by several points and each one is dilated by the same factor, then:

If |k| > 1, the image maps to a stretched or larger image.

If |k| < 1, the image maps to a shrunk or shorter image.

We have a hexagon graphed on a coordinate grid. The hexagon is dilated to create a larger hexagon. This means k must be greater than 1 and it should multiply each original coordinate (x,y).

Options F and H don't multiply by the coordinates but add to them, thus they are not valid answers.

Option J actually multiplies by the factor 0.2 but since it's less than 1, it does not correspond to an enlargement.

Only option G multiplies by a factor 4/3=1.3 greater than 1.

Answer: Choice G.

A population has a standard elevation of 25.29 what is the approximate standard error of the mean for a sample size of 175

Answers

Answer:

D. 1.91

(got it right on edmentum)

for your assurance please look at the picture below↓

Step-by-step explanation:

The standard error is 1.91.

How is Standard Error Calculated ?

For a data set the standard error is calculated by the ratio of standard deviation and square root of the sample size.

[tex]\rm Standard \; Error= \dfrac{ \sigma}{\sqrt{n}}[/tex]

Substituting the values

Standard Deviation = 25.29

Sample size = 175

Standard Error = 25.29 / √175

Standard Error = 1.91

Therefore the standard error is 1.91.

To know more about Standard Error

https://brainly.com/question/13179711

#SPJ2

#6* #6 Multiples Σ > Which answer choice has ONLY multiples of a. 7, 14, 21, 35, 56 b. 7, 21, 27, 35, 49 c. 7, 14, 28, 43, 56 d. 7, 21, 28, 49, 53​

Answers

Answer:

A

Step-by-step explanation:

B) No 27 is a multiple of 3 alone.

C) No 43 is prime. If you replaced it with 42 all would be well.

D) N 53 is prime.

A) everything is divisible by 7.

PLS HELP GIVING 25 POINTS PLS PLS

Answers

Answer   A is 28

Step-by-step explanation:

Answer:

oop

Step-by-step explanation:

The function of f is defined as follows

Answers

Answer:

f(-121) = -5

f(31) = 3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = ∛(x - 4)

f(-121) is x = -121

f(31) is x = 31

Step 2: Evaluate

f(-121)

Substitute in x:                    f(-121) = ∛(-121 - 4)[Radical] Subtract:               f(-121) = ∛(-125)[Radical] Evaluate:              f(-121) = -5

f(31)

Substitute in x:                    f(31) = ∛(31 - 4)[Radical] Subtract:               f(31) = ∛27[Radical] Evaluate:              f(31) = 3

Which situation cannot be represented by the equation x + 10 = 45?
A Marissa spent $45 on a hat and a shirt. The hat cost $10. What is x, the cost of the shirt in
dollars?
B Nicholas rode his bike 45 miles last week. He rode 10 miles on Tuesday and the rest of the
miles on Wednesday. What is x, the number of miles Nicholas rode his bike on
Wednesday?
C Two players scored a total of 45 points in a game. One player scored 10 points. What is x,
the number of points scored by the other player?
D There are 45 students in a group. There are also 10 adults in the group. What is x, the
total number of students and adults in the group?

Answers

Answer: D

because the other options actually make sense ;)

Answer:

D

Step-by-step explanation:

Please help!!

a. What is the x intercept of the line graphed above?

b. What is the Y intercept of the line?

c. What is the slope of the line?

Answers

Answer:
a) x-intercept: -2
b) y-intercept: 4
c) slope: 1/2

There are three types of sweet in a jar and this table gives
some information about them.
Type of sweet Eclair Humbug Mint
Number of sweets (see picture 4 3x + 6 2x)
A sweet is chosen at random.
The probability it is an eclair is
15
Work out the probability it is a humbug.

Answers

Answer:

Answer:

2/3

Step-by-step explanation:

Given:

Number of eclairs = 3

Number of humbugs =2x+6=2(x+3)  

Number of mints =  x

Therefore, total number of sweets in the jar is,

s=3+2x+6+x=3x+9=3(x+3)

Now, probability of selecting a sweet to be humbug is given as:

 p(humbug)= number of humbugs/number of sweets

p(humbug)=2(x+3)/3(x+3)=2/3

Therefore, the probability that it is a humbug is 2/3

Step-by-step explanation:

Based on the graph of the line below, which describes the relationship between the value of the y-intercept and the
value of the slope?
10
oc
6
4
2
2
-10 -3 -4 -22
4
B
х
8 10
6
28
10

Answers

Answer:

y intercept = 3

[tex]m = \frac{1}{3}[/tex] --- slope

Step-by-step explanation:

Given

The attached graph

Required

Determine the slope and the y intercept

The [tex]y\ intercept[/tex] is at the point where [tex]x = 0[/tex].

From the graph:

[tex]y = 3;\ when\ x = 0[/tex]

Hence,

y intercept = 3

Next, we calculate the slope using:

[tex]m = \frac{y_1 - y_2}{x_1 - x_2}[/tex]

Where:

[tex](x_1,y_1) = (0,3)[/tex]

[tex](x_2,y_2) = (9,6)[/tex]

So, we have:

[tex]m = \frac{3 - 6}{0 - 9}[/tex]

[tex]m = \frac{-3}{- 9}[/tex]

[tex]m = \frac{3}{9}[/tex]

[tex]m = \frac{1}{3}[/tex]


Solve the proportion. Please show me step by step how to solve this. Thanks
4.6/6 = w/3

Answers

9514 1404 393

Answer:

  w = 2.3

Step-by-step explanation:

It looks like you have ...

  4.6/6 = w/3

To solve this, you need to clear the 3 from the denominator of the w term. Do that by multiplying both sides of the equation by 3.

  3(4.6/6) = 3(w/3)

  4.6(3/6) = w . . . . simplify (rearrange the product to make mental arithmetic easier: 3/6 = 1/2)

  w = 2.3 . . . . . . . . do the arithmetic

Answer:

2.3

Step-by-step explanation:

jacks cow is tied to a beanstalk with a piece of rope that is 15ft long. what is the exact area of the circle in which a cow can graze?

Answers

Answer:

705.5 ft^2

Step-by-step explanation:

a=πr²

a=π15²

a=π225

a=(3.14)(225)

a=705.5


I need youre helpppp

Answers

Answer:

B , C, and D

Step-by-step explanation:

x + y and x+ z both make a straight line which is 180 degrees, and Z and Y are congruent angles.

The perimeter of the rectangle shown is 96 feet. Determine the length and width of the rectangle.

Answers

Answer:

45

Step-by-step explanation:

detrain of the value they was given

Answer:

Length = 37 feet

width = 11 feet

Step-by-step explanation:

First, let us find the value of x.

They've already given that the perimeter of this rectangle is 96 feet.

So,

4x - 7 + 4x - 7 + x + x = 96

10x - 14 = 96

10x = 96 + 14

10x = 110

Divide both sides by x.

x = 11 feet

And now we can find the value of the width and length.

Given that,

Length = ( 4x - 7 ) ⇒ ( 4 × 11 - 7 )

                                  44 - 7

                                    37 feet

Width = x ⇒ 11 feet

Let me know if you have any other questions :-)

I WILL GIVE BRAINLIEST PLZ ANSWER DUE IN A FEW MINUTES


What is every factor of 116

Answers

Answer:

1,2,4,29,58,116

Step-by-step explanation:

Prime factorization 116=2x2x29

Here are the factor pairs of 116:

1, 116
2, 58
4, 29

4 Alz(CO3)3
Do u multiple the 4 with the stuff in the parentheses ?

Answers

Answer:

a total of 56 atoms

Step-by-step explanation:

Aluminum carbonate is the compound

Yes, you multiply what is inside the parentheses times 4 and also times 3. That is:

8 atoms of Al

36 atoms of Oxygen

and

12 atoms of Carbon

giving a total of 56 atoms

simplify the expression 9(h - 1)

Answers

Answer:

9h - 9

Step-by-step explanation:

9(h - 1)

distribute

(9 * h) + (9 * - 1)

9h + (9 * - 1)

9h + -9

9h - 9

Answer:9h-9

Step-by-step explanation:

The number of books that Jordan has read is greater than 22.

HELP PLSS

Answers

Answer:

x>22

Step-by-step explanation:

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