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tino4ka555 [31]

3 years ago

13

The sum of two numbers is fifteen. One number is three less than the other. Find the numbers.

1 answer:

almond37 [142]3 years ago

6 0

Answer:The answer is 9.

Step-by-step explanation: solve the equation

(x)+(x-3)=15

2x= 15+3

2x=18

2/2x=18/2

x=9

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Help me answer this please:)

Dmitrij [34]

Answer:

A and B

Step-by-step explanation:

$\frac{7x+6}{2}\leq 3x+2 < ==multiply\ both\ sides\ by\ 2\\2(\frac{7x+6}{2}\leq 3x+2)\\\\7x+6\leq6x+4 < ==subtract\ -6x\ from\ both\ sides\ \\-6x \ \ -6x\\\\x+6\leq4 < ==subtract\ 6\ from\ both\ sides\\-6 \ \ \ -6\\\\x\leq-2 < ==answer\ should\ be\ anything\ less\ than\ or\ equal\ to\ -2$

Now, look at your answer choices, which options are less than or equal to -2?

x ≤ -2, Check your answers:

A. -3 ≤ -2?

This statement is correct (-3 is < -2)

B. -2 ≤ -2 <== our original answer

This statement is correct (-2 is = to -2)

C. -1 ≤ -2

This statement is incorrect (-1 is > -2, not ≤ -2)

D. 0 ≤ -2

This statement is incorrect (0 is > -2, not ≤ -2)

E. 1 < -2

This statement is incorrect (1 is > -2, not ≤ -2)

Therefore, the correct options are A and B

Hope this helps!

6 0

2 years ago

How many models of 100 do you need to make 3,200

Sever21 [200]

I believe the answer is 32 models of 100

6 0

3 years ago

Read 2 more answers

Find the range.<br><br> 40, 35, 45, 55, 60<br><br> Range:

Tpy6a [65]

The range is 25
That’s the answer

4 0

2 years ago

Which of the following proportions could be used to find x?

OLga [1]

$\frac{x}{2}$ = $\frac{6}{1.5}$

The 2 right triangles are similar and so the ratios of corresponding sides are equal

The corresponding sides are x and 2, 6 and 1.5, hence

$\frac{x}{2}$ = $\frac{6}{1.5}$

5 0

3 years ago

A local car wash is open 8 hours each day. It uses 1/3 of a container of wax for each car. The car wash waxes an average of 8 1/

sweet-ann [11.9K]

Answer:

22.67 containers.

Step-by-step explanation:

The number of cars washed is the average by the total hours worked:

$C_{total}=\bar xt,\bar x=8.5,t=8\\\\C_{total}=8.5\times 8=68$

Given that each car uses 1/3 tin of wax, the total containers is calculated as:

$Containers=\bar x_c n,n=68,\bar x_c=\frac{1}{3}\\\\=\frac{1}{3}\times 68\\\\=22.67$

Hence, the car wash uses 22.67 containers of wax per day.

8 0

3 years ago