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3 years ago

Solve the following equation. Then place the correct number in the box provided.

Mathematics

2 answers:

LuckyWell [14K]3 years ago

7 0

×+6-5=8-2
x+1=6
-1 -1
----------
x=5

shtirl [24]3 years ago

7 0

Answer:

Step-by-step explanation:

x + 6 - 5 = 8 - 2

8-2= 6.

6-5= 1.

So we can say x+1=6

So x = 5

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How do I answer this?

alexandr402 [8]

Answer:

there is three parts to this answer

Step-by-step explanation:

this first part is

A= 2.5

B= 49 feet

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C= 0.75 seconds

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3 years ago

I really need this answer as soon as possible please anyone

Contact [7]

The answer is 55!!!!

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2 years ago

Read 2 more answers

.Shanice and Micaela are selling cheesecakes for a school fundraiser. Customers can buy pecan

belka [17]

Answer:

Pecan cheesecake = $11

Strawberry cheesecake= $19

Step-by-step explanation:

To solve this, we will need to set up a system of equations:

Let's call "Pecan cheesecakes" 'x', and

"Strawberry cheesecakes" 'y'.

We can set up the equations once we have our variables:

276= 13x + 7y

295 = 13x +8y

We will need to subtract these equations from each other to get rid of the 'x' variable. This gives us:

295 = 13x+ 8y

276 = 13x+ 7y

19 = y

Therefore, Strawberry cheesecakes cost $19. Plug this into an equation to get the value of 'x':

276= 13x + 7(19)

276 = 13x + 133

143 = 13x

x= $11.

Therefore, Pecan cheesecakes cost $11.

8 0

3 years ago

In a Pew Research Center poll of 745 randomly selected adults, 589 said that it is morally wrong to not report all income on tax

Nikolay [14]

Answer:

The null hypothesis is $H_o : p = 0.75$

The alternative hypothesis is $H_a : p \ne 0.75$

$t = 2.51$

$p-value = 0.01207$

There no sufficient evidence to conclude that 75% of adults say that it is morally wrong to not report all income on tax returns

Step-by-step explanation:

From the question we are told that

The sample size is $n = 745$

The number that said it is morally wrong is $k = 589$

The level of significance is $\alpha = 0.01$

The population proportion is $p = 0.75$

Generally the sample proportion is mathematically represented as

$\r p = \frac{k}{n}$

=> $\r p = \frac{589}{745}$

=> $\r p = 0.79$

The null hypothesis is $H_o : p = 0.75$

The alternative hypothesis is $H_a : p \ne 0.75$

The standard error is mathematically represented as

$SE = \sqrt{\frac{p(1-p)}{n} }$

=> $SE = \sqrt{\frac{0.75(1-0.75)}{745} }$

=> $SE =0.0159$

Generally the test statistics is mathematically represented as

$t = \frac{\r p - p }{SE}$

=> $t = \frac{0.79 - 0.75 }{0.0159}$

=> $t = 2.51$

Generally the p-value is mathematically represented as

$p-value = 2 * P(Z > 2.51)$

From the the z-table

$P(Z > 2.51) = 0.0060366$

=> $p-value = 2 * 0.0060366$

=> $p-value = 0.01207$

From the calculation $p-value >\alpha$

Hence we fail to reject the null hypothesis

Thus there no sufficient evidence to conclude that 75% of adults say that it is morally wrong to not report all income on tax returns

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2 years ago

HELP ME PLEASE!!!

Kobotan [32]

Answer:

$x=2 , y=1$

Step-by-step explanation:

Since the second equation is fully simplified and we know what x equals, we plug the entire equation of x in for x in the top equation:

$5(3y-1)+10y=20$

Now solve for y.

$y=1$

Now plug y back into the bottom equation and solve for x.

$x=3(1)-1$

$x=2$

8 0

2 years ago