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3 years ago

Can someone help me out with this problem and tell me how to do it :D

Mathematics

1 answer:

Furkat [3]3 years ago

3 0

Answer: option D

Step-by-step explanation:

step 1: take 7-3(both have the variable x) and subtract it.

-a- -b= subtract then write the greater no.s sign

+a- +b= if the 1rst number is greater than the second, subtract and give

or make it a positive integer. if the 1rst no. is smaller than the second,

subtract then write the greater number's sign.

step 2: As 2-2 is 0, 2y-2y is 0

step 3: and the sum of the both: is 17-14= 13

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Maggie is training to run a 6 mile race. Her training program has her increase her weekly long run each week. This week she ran

Korvikt [17]

Answer:

Maggie will run 5.85 miles next week.

Step-by-step explanation:

Given:

Maggie is training to run a 6 mile race.

This week Maggie ran = 4.5 miles

Also Given:

Next week she will run 1.3 times as far as she did this week.

We need to distance she will run next week.

Now we know Next week she will run 1.3 times as far as she did this week.

It means Distance to be run next week will be equal to 1.3 times distance she ran this week.

Framing in equation form we get;

distance she will run next week = $1.3\times 4.5 = 5.85 \ miles$

Hence Maggie will run 5.85 miles next week.

6 0

3 years ago

Slope is -2 and (1,1) is on the line

Mrac [35]

-2x+3. X intercept is +3. Moves two steps down and one step to the right to land on the point (1,1)

7 0

2 years ago

Please help with this question!! I need serious help!!

asambeis [7]

Answer:

<h2>The circumference is multipled by 4.</h2>

Step-by-step explanation:

The formula of an area of a circle"

$A=\pi r^2$

The formula of a circumference of a circle:

$C=2\pi r$

The area multipled by 16:

$16A=16\pi r^2\\\\16A=\pi(4^2r^2)\\\\16A=\pi(4r)^2$

The radius has increased fourfold, therefore:

$C'=2\pi(4r)=4(2\pi r)=4C$

The circumference is multipled by 4.

You can calculate the area and check the circumference:

$r=11.6\ in\\\\A=\pi(11.6)^2=132.56\pi\\\\16A=(16)(134.56\pi)=2152.96\pi\ in^2$

Calculate the radius:

$\pi r^2=2152.96\pi$ <em>divide both sides by π</em>

$r^2=2152.96\to r=\sqrt{2152.96}\\\\r=46.4\ in$

Calculate the circumference of both circles:

$r=11.6\ in\\\\C=2\pi(11.6)=23.2\pi\ in$

$r=46.4\ in\\\\C'=2\pi(46.4)=92.8\pi\ in$

$\dfrac{C'}{C}=\dfrac{92.8\pi}{23.2\pi}=4\to C'=4C$

5 0

2 years ago

(9b+7)+(4x-3)+(8n+5)=? (Simplify your answer.)

uysha [10]

Answer:

9b+8n+4x+9

Hope that helps!

8 0

2 years ago

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Wally takes $40 out of his bank account every week.If he had a balance of $100 to begin with,what is his balance after 4 weeks?

vfiekz [6]

Answer:-$60

Step-by-step explanation: the answer is -$60 because multiply 40 by 4 you get $160 and you only have $100 so then you would 100-160=-60

6 0

3 years ago

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