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What is the solution of the system of equations? Write your answers in the blanks.
4x-2y=10 2x+y=-3 → =-2x-3 4x-2(________________)=10 y=-2(________________)-3 4x+4x+6=10 y=________________ 8x=4 x=________________

Answers

Answer 1

Answer:

fjvg8rg95ig9tjbopetjihefgiuo ugn idgjbiohionuion ijj ngibj irogjk0 krlkntirion pohtk ioh ht nh h h  h h h

Step-by-step explanation:


Related Questions

What is the circumference of this circle

Answers

Answer: 12.56 km

Step-by-step explanation:

C=2(3.14)r

C=2(3.14)2

C=12.56

A baker uses chocolate with 75% cocoa for his famous cake. But the supplier delivered 100 lb of chocolate with 70% cocoa. The baker needs to melt and mix the delivery with chocolate that has 90% cocoa. How much of the 90% chocolate should he use.

Answers

Answer:

33 1/3 pound of cocoa

Step-by-step explanation:

;)

BE FAST IM TIMED
An education researcher is interested in comparing the learning outcomes of students who are taught a lesson using five different teaching techniques. There are 75 students in the school who can participate in the experiment. Using a table of random digits, the researcher will randomly place the students into five equally sized treatment groups suitable for comparison.

Which number range would be needed to label the students correctly?

A 0–4
B 1–5
C 00–75
D 01–75

Answers

Answer:

D

Step-by-step explanation:

Answer:hope it helped

Step-by-step explanation:

c answer

Triangle ABC has A(-3,6),B(2,1), and C(9,5) what the length of side AB? What the length BC what the length AC and what ABC

Answers

Answer:

AB = 5√2

AC = √145

BC = √65

Step-by-step explanation:

Using the formula for calculating the distance between two points

D = √(x2-x1)²+(y2-y1)²

For AB A(-3,6),B(2,1),

AB = √(2+3)²+(1-6)²

AB = √(5)²+(-5)²

AB = √25+25

AB =  √50

AB = 5√2

For AC A(-3,6) and C(9,5)

AC = √(9+3)²+(5-6)²

AC = √(12)²+(-1)²

AC = √144+1

AC = √145

For BC B(2,1), and C(9,5)

BC = √(9-2)²+(5-1)²

BC = √(7)²+(4)²

BC = √49+16

BC = √65

Since All the sides are difference, hence triangle ABC is a scalene triangle

The brown family might plant 1/8 tomatoes, 1/8 cabbage, and 1/8 peppers. If they do, what fraction of their garden will be unplanted?

Answers

I don’t really know the answer

To make a profit a clothing store sells board shorts at on trade and 115% of the amount they paid for them. How much did the store pay for the board shorts shown? Give me work and I'll mark you brainlest and 15 points.​

Answers

Answer: $24.34

Step-by-step explanation:

28/X=115/100

Part/Whole= %/100

28=1.15*x

Help me I’ll mark you brainly!

Answers

-1 - 6x^2- 1/6. X^4 Write in standard form.

1

6
x
2

1
6
x
4

Answer:

- 6x² -x⁴/6 -1 because 6x² is co effectient

7. The ratio of strawberries to grapes in the fruit salad is 3:9. The ratios of strawberries to honeydew is 6:14. If there 36 grapes, how peony strawberries. Match the fractions that are equivalent to each other​

Answers

Answer:

12 strawberries

Step-by-step explanation:

Let

[tex]S = Strawberry[/tex]

[tex]G = Grape[/tex]

[tex]H = honeydew[/tex]

Given

[tex]S : G = 3 : 9[/tex]

S : H = 6 : 14

Required

Solve for S when G = 36

To do this, we make use of the first ratio

[tex]S : G = 3 : 9[/tex]

Substitute 36 for G

[tex]S : 36 = 3 : 9[/tex]

Convert ratio to fractions

[tex]\frac{S}{36} = \frac{3}{9}[/tex]

[tex]\frac{S}{36} = \frac{1}{3}[/tex]

Cross Multiply

[tex]S * 3 = 36 * 1[/tex]

[tex]3S = 36[/tex]

Divide through by 3

[tex]\frac{3S}{3} = \frac{36}{3}[/tex]

[tex]S = \frac{36}{3}[/tex]

[tex]S = 12[/tex]

The (b) part of the question can not be solved with the given details.

However, some equivalent fractions are:

[tex]\frac{1}{2} = \frac{2}{4}[/tex] ---- 0.5

[tex]\frac{5}{15} = \frac{10}{30}[/tex] --- 0.33

[tex]\frac{4}{7} = \frac{8}{14}[/tex] --- 0.57

To get the equivalent fractions, you have to convert the fractions to decimal and then make comparison.

4.Erik works 42 hours a week making $11 hour? His employer pays time and a half for hours over 40. Find his gross pay.

Answers

Answer:

$473.00

Step-by-step explanation:

Regular pay = 11*40 = 440.00

Overtime = (11*1.5)*2 = 33.00

Gross = 440 + 33 = 473.00

What is the product of (5.9 x 10^3) and (5.9 x 10^4) expressed in scientific notation?
please help

Answers

Answer: 3.481 x 10^8

:)

Step-by-step explanation:

(5.9 x 10^3)(5.9 x 10^4)

(5.9 x 5.9) (10^3 x 10^4)

34.81 x 10^7

= 3.481 x 10^8

5-37. Richard's strategy for changing a percent to a decimal is to put the decimal point in front of the percent
number. An example of his work is shown at right. Do you agree with Richard's method? Explain your reasoning.
8%=0.8
80%=0.80
800%=0.800

Answers

9514 1404 393

Answer:

  no

Step-by-step explanation:

The percent symbol (%) is a shorthand way to write "divided by 100" (/100). The percent can be changed to a decimal by making that substitution.

  8% = 8/100 = 0.08

  80% = 80/100 = 0.80

  800% = 800/100 = 8.00

Effectively, the change to a decimal is made by moving the decimal point two places to the left. Richard's strategy only works if the percentage has 2 digits left of its decimal point. It does not work in the general case.

I want to know the exact height of the big column

Answers

Answer:

Height of the red bar is 8m

The amount of time needed for a certain machine to process a job is a random variable with mean EXi = 10 minutes and Var(Xi)=2 minutes2. The times needed for different jobs are independent from each other. Find the probability that the machine processes less than or equal to 40jobs in 7hours.

Answers

Answer:

0.98732

Step-by-step explanation:

Given that :

Mean = 10 minutes

Variance = 2 minutes

For less than equal 40 jobs

Mean (m) = 40 * 10 = 400 minutes

Variance = 2 * 40 = 80 minutes

Standard deviation (s) = √variance = √80

Converting hours to minutes

X = 60 * 7 = 420 minutes

P(X≤ 420) :

Z = (x - m) / s

P(X≤ 420) :

Z = (420 - 400) / √80

Z = 20 / √80 = 20 / 8.9442 = 2.236

P(Z ≤ 2.236) = 0.98732

The probability that the machine processes less than or equal should be 0.98732

Calculation of the probability:

Since

Mean = 10 minutes

Variance = 2 minutes

For less than equal 40 jobs

Mean (m) = 40 ( 10) = 400 minutes

Variance = 2 (40) = 80 minutes

Now

Standard deviation (s) = √variance = √80

Now here we Converting hours to minutes

So,

X = 60 (7) = 420 minutes

Now

P(X≤ 420) :

Z = (x - m) / s

Z = (420 - 400) / √80

Z = 20 / √80

= 20 / 8.9442

= 2.236

Now finally

P(Z ≤ 2.236)

= 0.98732

Hence, The probability that the machine processes less than or equal should be 0.98732

Learn more about probability here: https://brainly.com/question/3066522

[5y]^4 when y= 2 Evaluate the expression

Answers

Answer:

10000

Step-by-step explanation:

Well substitute it

(5*2)^4

now follow order of operations (Parenthesis, exponents, multipication-division left to right, etc.)

5*2=10

10^4=10000

so the answer would be

10000 if y is 2

Answer:

10,000

Step-by-step explanation:

First, let's do the brackets (because of PEMDAS). We know that y = 2, so we multiply 2 and 5 to get 10. Now, we have to solve 10^4. To get 10^4, multiply 10 by itself four times. That gets us 10,000.

A warehouse has 10,032 batteries. The warehouse ships the same number of batteries to 12 stores. How many batteries were shipped to each store?

Answers

836 batteries were shipped to each store

Answer:

836 batteries were shipped to each store

Step-by-step explanation:

Which expression is equivalent to the expression shown?
2
4 x4
48
166
46

PLZ ANSWER I WILL GIVE BRAINLIST

Answers

Answer:

5^8 .. you have to do it like this 5^(2×4)

5^8.
Hope i helped :)

The angle of elevation of the top of the building at a distance of 50 m from its
foot on a horizontal plane is found to be 60 degree. Find the height of the
building. *
86.6 m
50 m
60 m
50.3 m

Answers

Answer:

this is so easy

see answer

answer from india

mark me as brainlist

GIVING BRAINLIST TO WHOEVER ANSWERS

Answers

37+6g=79, 17 games ://///////////////

Help please will brain list

Answers

Answer. All the correct statements are:-

B. -8.7 is further to the left on the number line than -8.4

C. -8.7 is less than -8.4

F. -8.4 is greater than -8.7

Answer:

Step-by-step explanation:

Which of the following statements is NOT true?
1) A well-designed experiment is the only legitimate way to establish a cause-and-effect relationship between two variables.
2) We can use results from an observational study to test a claim about a population. 3) When an observational study has a large sample and follows people for many years, we can use the results to establish a cause-and-effect relationship between two variables.
4) When many observational studies together meet specific criteria, the results can provide varying degrees of evidence for a cause-and-effect relationship between two variables. But we should be cautious in interpreting such results.

Answers

It’s either question 2 or question 3 I’m not good at math worth a shot

Sarah bought 4 pens for $1.00. How many did she pay for each pen?

Answers

Answer:

Sarah paid 25 cents for each individual pen

Step-by-step explanation:

Answer:

she paid .25 cents for each

Step-by-step explanation:

1.00÷4=.25

Another algebra question 8 POINTS

Answers

(5x +2) + (4x -5)

Remove the parenthesis:

5x + 2 + 4x -5

Now combine the like terms:

5x + 4x = 9x

2 - 5 = -3

Put the two terms back together to get: 9x-3

How many times greater is the value of the 4 In 42,672 than the value of the 4 in 37,426

Answers

Step-by-step explanation:

it 100 more than the 4 in 37,426

Imagine that each of these 40 students then made their choices from the list of four personality
types. What proportion of the 40 students needs to match correctly to provide convincing
evidence that there is a connection between sign and personality type? Explain your reasoning.

Answers

to be honest my example for this is 160

Helpp picture about will mark

Answers

Answer:

36

Step-by-step explanation:

3*2=6

6^2 is 36

Factor completely (x2 +x -6)(2x2 + 4x)

Answers

Answer:(x - 2) (x + 3) ⋅  2x (x + 2)

Step-by-step explanation: factor the polynomial

If f(x) = 3x and g(x) = -2x + 7, what is f(g(-2))?

Answers

Answer:

9

Step-by-step explanation:

-2 x -2 + 7 = 3 x 3= 9 I'm pretty sure that's it I did it like a month ago just realized I did it wrong sorry

Will give brainliest to first right answer. Before a sale an items price was $28.00 then after being discounted the price was $14.60. What was the discount for the item?

Answers

Answer:

25 percent off. I think, tell me if i am wrong.

Veronica's Violin Village sold 400 violins in the month of July. In the month of August they decreased
their sales by 84 violins. By what percent did they decrease their monthly sales of violins from July to
August?

Answers

Answer:

21% is the answer :)

express 4,085 in scientific notation ​

Answers

4.085 x 10 to the 3 power is your answer

Answer:

4.085 x 10^3

Step-by-step explanation:

just use powers to figure out these questions. it always starts from a single digit! for example if the number is 4,000 it would just be 4 x 10^3 but because theres more unique numbers then it would be a decimal

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