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Sveta_85 [38]
3 years ago
15

Evaluate the expression 5c-2 for c=5. help

Mathematics
1 answer:
mezya [45]3 years ago
6 0

Answer:

= 23

Step-by-step explanation:

(5) (5) - 2 ( multiply )

= 5 * 5 = 25

( subtract ) 25 - 2 = 23

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A recipe for banana bread requires 3 cups of bananas for every 1 1/2 cups of sugar used.At this rate,how many cups of sugar shou
arsen [322]

Answer: 1 cup of sugar

Step-by-step explanation:

A recipe for banana bread requires 3 cups of bananas for every 1 1/2 cups of sugar used.

Converting 1 1/2 cups of sugar to improper fraction becomes 3/2 cups of sugar.

If 3 cups of bananas is required for 3/2 cups of sugar,

x cups of bananas will require 1 cup of sugar

3x / 2 = 3

3x = 6

x = 6/3 = 2

Therefore,

2 cups of bananas will require 1 cup of sugar.

We are looking for the number of cups of sugar that would require 2 cups of bananas.

We already got the answer.

1 cup of sugar would be used if 2 cups of bananas are used.

6 0
3 years ago
The enrollment for a college last year was 2250 students, including 180 engineering majors. The enrollment for the college this
ki77a [65]

Answer:

this year

Step-by-step explanation:

This year, there were more students overall, and there were more engineering majors than last year. There were just more students this year overall than last year.

8 0
3 years ago
Read 2 more answers
The length of a rectangle field if 7/5 of its width. if the perimeter of the field is 240 meters, what are the length and width
trasher [3.6K]
Perimeter of any figure is all its sides summed up

for a rectangle, with two equal pairs, that means, length + length + width + width or   2length + 2width, or  2(length + width)

but we know the length is 7/5 the width

width = w
perimeter = P


\bf P=2\left(\frac{7}{5}w +w \right)\qquad P=240\implies 240=2\left(\frac{7}{5}w +w \right)
\\\\\\
120=\frac{7}{5}w +w\impliedby \textit{let's multiply both sides by 5}
\\\\\\
600=7w+5w\implies 600=12w\implies \cfrac{600}{12}=w

and the length is 7/5 of that
7 0
4 years ago
The distance a butterfly flies varies directly with it's time in the air. If a butterfly travels 264 ft in 0.5 min, how far will
Eva8 [605]

Answer:

The butterfly travels 660 ft in 1.25 min.

Step-by-step explanation:

If the distance, d, a butterfly flies varies directly as the time,t in the air, then we can write the mathematical statement.

d\propto t

If we introduce the constant of proportionality, we obtain;

d=kt

According to the question, when d=264\:ft, t=0.5\:min.

We substitute these values to obtain;

264=0.5k

\Rightarrow k=\frac{264}{0.5}

\Rightarrow k=528

The direct variation equation now becomes

d=528t

When t=1.25\:min

d=528(1.25)

d=660

Therefore the butterfly will travel 660 ft in 1.25 min.

7 0
3 years ago
Hunter is playing a video game where each round lasts ¾ of an hour. He has scheduled 3 hours to play video games. How many round
NemiM [27]

Answer:

4

45×4=180

this needs to be 20 characters long

3 0
3 years ago
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