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4 years ago

Jade can do 65 push ups in 5 minutes. At the same rate, how many push ups can you expect her to do in 7 minutes?

Mathematics

2 answers:

hram777 [196]4 years ago

3 0

Answer:

Step-by-step explanation:

Set up a proportion, where x is the number of push ups she can do in 7 minutes

$\frac{65}{5}$ = $\frac{x}{7}$

Cross multiply and solve for x:

5x = 455

x = 91

So, Jade can do 91 push ups in 7 minutes

musickatia [10]4 years ago

3 0

Answer:

She can do 91 pushups

Step-by-step explanation: make an equation

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There is 1/4 gram of fat for every 1/3 tablespoon of powdered peanut butter. How many grams of fat are there for every tablespoo

alexdok [17]

For this case what we must do is find the unit rate of grams of fat for every tablespoon of the powder.

We have then:

$R = \frac {grams\ of\ fat} {tablespoon\ of\ the\ powder}$

Substituting values we have:

$R = \frac {\frac {1} {4}} {\frac {1} {3}}$

Then, rewriting we have:

$R = \frac {3} {4}$

Answer:

There are $\frac {3} {4}$ grams of fat are there for every tablespoon of the powder

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3 years ago

Please help with geometry

Mrrafil [7]

Answer:

Step-by-step explanation:

132 + (4x - 10) + (5x - 11) + 128 + (4x+2) = 540 All convex 5 sided figures have 540 degrees. Remove the brackets.

132+ 4x - 10 + 5x - 11 + 128 +4x + 2 = 540 Collect like terms

13x + 241 = 540 Subtract 241 from both sides.

13x = 540 - 241

13x = 299 Divide by 13

x = 299/13

x = 23

<P = 4x + 2

<P = 92 + 2

<P = 94

8 0

3 years ago

If a+b=1, find N=a^3+b^3+3ab

mart [117]

Answer: 1

Step-by-step explanation:

a + b = 1

a³ + b³ = (a + b)(a² - ab + b²) formula for a perfect cube

a³ + b³ + 3ab = (a + b)(a² - ab + b²) + 3ab

↓

= 1 (a² - ab + b²) + 3ab

= a² - ab + b² + 3ab

= a² + 2ab + b² this is a perfect square

= (a + b)(a + b)

↓ ↓

= (1) (1)

= 1

4 0

3 years ago

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X^2 + 10x = 0 How do I solve for a completed square ?

Mekhanik [1.2K]

Answer:

12x=0

Step-by-step explanation:

x=0 because it is

6 0

3 years ago

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According to the chart, from 1986-1996, unintentional drug overdose deaths per 100,000 population began to rise. The numbers for

Vaselesa [24]

Answer:

The mean of these statistic is 2.18.

Step-by-step explanation:

According to the chart, from 1986-1996, unintentional drug overdose deaths per 100,000 population began to rise.

The given data set is

2, 1, 2, 2, 1, 2, 2, 3, 3, 3, 3

Formula for mean:

$Mean=\frac{\sum x}{n}$

Using this formula, the mean of the data is

$Mean=\frac{2+1+2+2+1+2+2+3+3+3+3}{11}$

$Mean=\frac{24}{11}$

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Therefore the mean of these statistic is 2.18.

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3 years ago

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