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3 years ago

8

Georgia makes $20 doing lawn work for four hours each week he wants to buy a $2500 use car he has been saving this money 430 wee

ks how much has he saved

1 answer:

Aleonysh [2.5K]3 years ago

6 0

430*20 is how much he has saved

8600 he has more than enough for the used car

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Which is the graph of y = 2.5x?<br><br> A.<br><br><br> B.<br><br><br> C.<br><br><br> D.

Thepotemich [5.8K]

The answer is D. because first you got solve the problem.

y=2.5x
(turn y to 0)
0= 2.5x
÷2.5 ÷2.5
_________
0=x

So we got one answer (0,0)

y=2.5x
(turn x to 0)
y= 2.5(0)
y=2.5

(2.5, 0)

When you do (0,0) (2.5,0) on the graph it will look like D.)

5 0

3 years ago

I'll give u a kith pls help

lord [1]

ANSWER:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

(−2,−16)

Equation Form:

x= −2, y= −16

8 0

3 years ago

Read 2 more answers

74.88 x 8 rounded to the nearest cent

mafiozo [28]

Answer:

74.88*8=599.04

Correct answer is 599

Step-by-step explanation:

This would be the answer with cents.

But you have to round to the nearest whole number which would be 599

Hope this helps mark brainliest please :)

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2 years ago

A computer manufacturing company has sent a mail survey to 2,800 of its randomly selected customers that have purchased a new la

vodka [1.7K]

Answer:

The 96% confidence interval for the population proportion of customers satisfied with their new computer is (0.77, 0.83).

Step-by-step explanation:

We have to calculate a 96% confidence interval for the proportion.

We consider the sample size to be the customers that responded the survey (n=800), as we can not assume the answer for the ones that did not answer.

The sample proportion is p=0.8.

$p=X/n=640/800=0.8$

The standard error of the proportion is:

$\sigma_p=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.8*0.2}{800}}\\\\\\ \sigma_p=\sqrt{0.0002}=0.014$

The critical z-value for a 96% confidence interval is z=2.054.

The margin of error (MOE) can be calculated as:

$MOE=z\cdot \sigma_p=2.054 \cdot 0.014=0.03$

Then, the lower and upper bounds of the confidence interval are:

$LL=p-z \cdot \sigma_p = 0.8-0.03=0.77\\\\UL=p+z \cdot \sigma_p = 0.8+0.03=0.83$

The 96% confidence interval for the population proportion is (0.77, 0.83).

4 0

3 years ago

Please help!<br> 10<br> ∑ 2i-9<br> i=3

pentagon [3]

$\sum\limits_{i=3}^{10}(2i-9)=2(3)-9+2(4)-9+2(5)-9+2(6)-9+2(7)-9\\\\+2(8)-9+2(9)-9+2(10)-9\\\\=6-9+8-9+10-9+12-9+14-9+16-9+18-9+20-9\\\\=90-72=18$

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3 years ago