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3 years ago

Two trapezoids below are similar what is the length of RS?

Mathematics

1 answer:

stepladder [879]3 years ago

6 0

9514 1404 393

Answer:

11.5 m

Step-by-step explanation:

The fact that the figures are similar means the side lengths are proportional:

RS/QT = BC/AD

RS/(7 m) = (2.3 m)/(1.4 m)

RS = (7 m)(2.3/1.4) . . . . . . multiply by 7 m

RS = 11.5 m

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2(3x+2)=2x-1+x solve

alina1380 [7]

First multiply and dstribute
a(b+c)=ab+ac
2(3x+2)=6x+4
6x+4=2x-1+x
add like terms
6x+4=3x-1
subtract 3x from both sides
3x+4=-1
subtract 4 from both sides
3x=-5
divide bothe sides by 3
x=-5/3

7 0

3 years ago

Last week,the price of apples at a grocery store was 1.60 per pound.This week,apples at the same grocery store are on sale for a

Degger [83]

Answer:

The total price of $4\frac{1}{2}$ pounds of apples is $6.48.

Step-by-step explanation:

Given:

Last week,the price of apples at a grocery store was 1.60 per pound.This week,apples at the same grocery store are on sale for a 10% discount.

Now, to find the total price of 4 1/2 pounds of apples this week at the grocery store.

The price of apples at a grocery store last week was = $1.60 per pound.

This week apples at the same grocery store is on sale of 10% discount.

Thus, the price of apples at a grocery store this week is:

$1.60-10\%\ of\ 1.60.$

$=1.60-\frac{10}{100} \times 1.60$

$=1.60-0.16$

$=\$1.44.$

So, the price of apples per pound this week is $1.44.

Now, to get the total price of $4\frac{1}{2}$ pounds of apples by using unitary method:

If 1 pound of apples cost = $1.44.$

Then, $\frac{9}{2}$ pound of apples cost = $1.44\times \frac{9}{2}$

$=1.44\times 4.5$

$=\$6.48.$

Therefore, the total price of $4\frac{1}{2}$ pounds of apples is $6.48.

4 0

3 years ago

motikmotik

Answer:

1st one is yes

Step-by-step explanation:

the other two im not sure about

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3 years ago

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nasty-shy [4]

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Step-by-step explanation:

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3 years ago

Y varies inversely with x k = 0.6 What is the value of x when y is 0.6?

skad [1K]

to find X when K is known

divide K by Y

0.6/0.6 = 1

X = 1

7 0

3 years ago