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3 years ago

The sum of twenty and five times a number is equal to fifty five.write the expression.then solve it.

1 answer:

5 0

A.)20+5n=55
B.) You subtract 20 from 55 which is 35.
So your left with 5n=35, divide both sides by 5. 35÷5=7
C.)Your answer is 7.

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Need help with Algerbra math

makkiz [27]

Answer:

57.5

Step-by-step explanation:

divide 92 by 1.6. I hope this helps

4 0

3 years ago

Find the coordinates of Cafter a 90° clockwise rotation

mixas84 [53]

Answer:

(0,-6)

Step-by-step explanation:here the answer

6 0

3 years ago

1. What is the circumference of the given circle in terms of pi? radius= 14 in.

rusak2 [61]

Answer:

1. B 2. B

Step-by-step explanation:

1. The formula for circumference is C= pi times diameter

Radius is half of diameter, so you'd multiply 14 times 2 which gives you 28. Since it's asking for it in pi, it'll be 28 pi.

2. I think instead of circumference, it's asking for area because if it was asking for circumference the answer would have been 6.6 pi, but that answer isn't there. So if it's asking for area, the formula is A= pi(r²) They gave the diameter instead. Remember, the radius is half of the diameter, so in order to get the radius, you'd divide 6.6 by 2 and get 3.3. Then, multiply 3.3 with the number itself, and you'll get 10.89.

Hope this helps!

5 0

3 years ago

the graph shows the number of wimbledon championships of several countries. Write the ration that compares the championships won

arlik [135]

Answer:

The ratio that compares the championships won by Australia to the total number won by the United States is equal to $\frac{2}{5}$

Step-by-step explanation:

Observing the graph

we know that

The championships won by Australia are 6

The championships won by the United States are 15

To find out the ratio, divide the championships won by Australia by the total number won by the United States.

$\frac{6}{15}$

Simplify

Divide by 3 boths (numerator and denominator)

$\frac{2}{5}$

Convert to percentage

$\frac{2}{5}=0.40*100=40\%$

that means

For every 2 championships won by Australia the United States won 5

The championships won by Australia are 40% of the championships won by the United States

4 0

3 years ago

Every year, a car loses 15% of the value it had the year before. If the car's initial value is $ 24,000, then how long will it t

ella [17]

Answer:

4.62 years

Step-by-step explanation:

Half the car's value =>$24,000/2 = $12,000

The formula for exponential decrease =

y = a(1 - r)^t

y = Initial value = $24,000

a = Value after time t = $12,000

r = Decrease rate = 15% = 0.15

t = time in years =??

Hence,

24,000 = 12000 ( 1 - 0.15)^t

Divide both sides by 12000

24000/12000 = 12000 ( 0.85)^t/ 12000

2 = 0.85^t

We take the logarithm of both sides

log 2 = log (0.85)^t

log 2 = t log 0.85

Divide both sides by log 0.85

t = log 2/log 0.85

t = 4.62098120373 years

Approximately = 4.62 years

It would take 4.62 years to be worth half the initial price

8 0

3 years ago