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Ludmilka [50]
3 years ago
15

Ava is 4 years younger than Eli. The sum of their ages is 30. How old is Eli?

Mathematics
1 answer:
Damm [24]3 years ago
5 0
Eli is 17 years old because 17-4=13
and 17+13=30
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A machine produces 440 bolts in 48 minutes. At the same rate, how many bolts would be produced in 30 minutes
umka2103 [35]

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8 0
3 years ago
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Two rectangles are similar. The first rectangle has a length of 15 cm and a width of 10 cm. The width of the second rectangle is
Margarita [4]

Answer:

Its length is 37.5 cm.

Step-by-step explanation:

If two rectangles are similar, their sides are proportional, that is, they have equal ratios. So

The first rectangle has a length of 15 cm and a width of 10 cm. The width of the second rectangle is 25 cm.

So

\frac{15}{10} = \frac{l}{25}

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l = 2.5*15 = 37.5

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7 0
3 years ago
Ally made 60 donuts on Friday. She made 3x donuts on Wednesday and 2x donuts on Thursday. How much donuts did she make in all?
olya-2409 [2.1K]

Answer:

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3 0
3 years ago
PLs help
Pavel [41]

A) The hypotenuse is the longest side of the triangle .In the figure EG is the hypotenuse.The given angle is <G=40 degrees.The side adjacent is FG= 10 units.

The question is asking us to find the trigonometry ratio which will  help us find EG.We can use cos  as cos is ratio of adjacent and hypotenuse.

cos 40=\frac{10}{Hypotenuse EG.}

B) Cos  40 =0.766.

Substituting tan40 value we have:

0.766=\frac{10}{EG}

EG=13.05.

C)Sum of angles in  triangle is 180.

<E+<F+<G=180

<E+90+40=180

<E+130=180

<E=50 degrees.

D) Tan  40=\frac{EF}{10}

EF=8.39

E) Area of triangle EFG= \frac{1}{2}x base x height.

A rea of the triangle = \frac{1}{2}x8.39x13.05

Area= 54.75 square units.





5 0
4 years ago
9. A pet store has 45 mice. The number of mice is 22 more than the number of cats. Which equation can be solved to find the numb
madam [21]
Answer

C. c+22=45

Working
6 0
3 years ago
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