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3 years ago

Help...........................

Mathematics

1 answer:

egoroff_w [7]3 years ago

5 0

Answer: t>7.

Explanation: I have done the math and looked it right back sure. 100% sure that it is the answer.

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I need help on this question

saul85 [17]

Whole circle = 360⁰ and 100%.

360⁰ ------ 100%

x ------------- 20%

x= 360*20/100 =72⁰

Answer C. 72⁰.

3 0

3 years ago

Write the equation of a line with slope m= 1/2 half and including point (4, -1).

poizon [28]

Formula: y=mx+b
(4,-1)
4 is x
-1 is y
m=1/2

-1=1/2(4)+b
1/2(4)=2

-1=2+b
-1-2=-3

-3=b

y=1/2x-3

4 0

3 years ago

Mr. Hon purchases a new car every 4 years. Ms. Jasper purchases a new car every 6 years. They both purchased new cars this year.

Kipish [7]

Answer:

12 years

Step-by-step explanation:

Given that Mr. Hon purchases a new car every 4 years. Ms. Jasper purchases a new car every 6 years.

Assuming that they purchase new cars together after n years.

So, n must a multiple of 4 as well as multiple 6, i.e the number n is the lowest multiple (LCM) of 4 and 6.

As LCM od 4 and 6 is 12, so n=12.

Hence, after 12 years they will purchase news cars together.

5 0

3 years ago

3 years ago a father was 4 times as old as his daughter is now. The product of their present ages is 430. calculate the present

iren [92.7K]

If the product of the present age of father and his daughter is 430 and the age of father was 4 times as old as his daughter is now, then the present age of father is 43 and the present age of daughter is 10.

Given that the product of the present age of father and his daughter is 430 and the age of father was 4 times as old as his daughter is now.

We are required to find the present age of the father and daughter.

Suppose the present age of the father is x.

Suppose the present age of his daughter is y.

We are given product of present ages be 430.

xy=430----------1

y=430/x

According to question,

x-3=4y

Put the value of y=430/x.

x-3=4*430/x

$x^{2}$ -3x=1720

$x^{2} -3x-1720=0$

x=(3± $\sqrt{3^{2}-4*1*(-1720) }$ )/2*1

x=3± $\sqrt{6889}$ )/2

x=(3±83)/2

x=(3+83)/2

(Ignoring the negative value because the age cannot be negative as it is coming before the greater number)

x=43

y=430/x

y=430/43

y=10

Hence if the product of the present age of father and his daughter is 430 and the age of father was 4 times as old as his daughter is now, then the present age of father is 43 and the present age of daughter is 10.

Learn more about product at brainly.com/question/10873737

#SPJ9

5 0

2 years ago

Elysia added -218+(-395) and got a sum of -613.Which best explains whether or not Elysia sum is reasonable?

Thepotemich [5.8K]

Answer:

I don't know your options, but it is reasonable.

Step-by-step explanation:

Adding a negative is equivalent to subtracting a positive, so you would get

-218-395

=-613

7 0

4 years ago