3 years ago

A triangle with a height of 5cm and a base length of 12cm what is the perimeter

Mathematics

1 answer:

Lisa [10]3 years ago

7 0

Answer: 5+5+12+12

Step-by-step explanation:

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Dwayne is selling hamburgers and cheeseburgers. He has 100 burger buns. Each hamburger sells for $3, and each cheeseburger sells

vampirchik [111]

Given:
hamburger = h ; sells for 3
cheeseburger = c ; sells for 3.50
100 burger buns

h + c = 100

3h + 3.5c <u>></u> 80 last option.

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4 years ago

Which expression has a value of 20?

Mice21 [21]

Answer:

the fist one is equal to 20

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3 years ago

A swimming pool is to be drained. The pool is shaped like a rectangular prism with length 25 ft; width 18 ft, and depth 6 ft. Su

Slav-nsk [51]

Answer:

15 hours

Step-by-step explanation:

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2 years ago

Keith's height and his nephews height was at a ratio of 15:7 then, keith's Height increased by 16% and his nephews height double

Vikentia [17]

Answer:

311.6 cm

Step-by-step explanation:

To solve this problem, let's call:

k = Keith's height

n = nephew's height

Since the ratio is 15:7, we have

$\frac{k}{n}=\frac{15}{7}\\k=\frac{15}{7}n$ (1)

Then, Keith's height is increased by 16%, so the new height of Keith is

$k'=k+0.16 = 1.16k$ (2)

While the nephew's height is doubled:

$n'=2n$ (3)

We also know that Keith is now 34 cm taller than his nephew, so

$k'=n'+34$ (4)

Substituting (2) and (3) into (4), we get

$1.16k=2n+34$

And substituting (1),

$1.16\cdot \frac{15}{7}n=2n+34$

Solving for n,

$2.49n=2n+34\\\\0.49n=34\\n=\frac{34}{0.49}=69.4$

So the current height of the nephew is:

$n'=2n=2(69.4)=138.8 cm$

While Keith's current height is

$k'=138.8+34=172.8 cm$

So their total current height is

$k'+n'=172.8+138.8=311.6 cm$

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4 years ago

A proportion is an equation that states two _____ are equal.

Dafna1 [17]

Proportions have two fractions so the answer is ratios.

Hope it helps :)

5 0

4 years ago

Read 2 more answers