All categories

4 years ago

PLEASE HELP 30 POINTS PLEASE!!!!!

Mathematics

1 answer:

Lana71 [14]4 years ago

4 0

Answer:

-13ºF || 9ºF

Step-by-step explanation:

You might be interested in

What is the final velocity of a runner who is accelerating at 2 feet per second squared for 3 seconds with an initial velocity o

Tatiana [17]

<span>a= 2 ft/s^2 t=3 s vi=4 ft/s vf=? One can use the kinematic equation: vf=vi+at vf=(4 ft/s)+(2 ft/s^2)(3 s)= (4 ft/s)+(6 ft/s)=10 ft/s</span>

3 0

4 years ago

A number n is multiplied with —9 to give 63. Find the value of n.

FrozenT [24]

Answer:

n = -7

Step-by-step explanation:

63÷-9

5 0

3 years ago

Read 2 more answers

the doctor recommended that Matt increase the number of calories you consume from 2000 to 2800 by what percent did the number of

nikdorinn [45]

Answer:

40% number of calories have increased

Step-by-step explanation:

Old Value ( Calories consume before) = 2000

New Value (increase in Calories consumed) = 2800

We need to find by what percent did the number of calories increase

To find percent increase, the formula used is:

$Percent\: increase=\frac{New\:Value-Old\:Value}{Old\:Value}\times 100%$

Putting values in formula and finding percent increase

$Percent\: increase=\frac{New\:Value-Old\:Value}{Old\:Value}\times 100\%\:\\Percent\: increase=\frac{2800-2000}{2000}\times 100\%\: \\Percent\: increase=\frac{800}{2000}\times 100\%\: \\Percent\: increase=0.4\times 100\%\: \\Percent\: increase=40\%$

So, 40% number of calories have increased

8 0

3 years ago

in a school ,the number of boys who play cricket is 3 times as much as a number of boys who play tennis. if 12 boys, who play cr

Ierofanga [76]

Answer:

The number of boys who play tennis is 36.

Step-by-step explanation:

Let the number of boys who play tennis is x.

number of boys who play cricket = y

x = 3 y..... (1)

12 boys plays both cricket and tennis.

According to the question,

x - 12 = y + 1 2

3 y - 12 = y + 12

2 y = 24

y = 12

So, the number of boys who plays tennis is x = 3 x 12 = 36.

8 0

3 years ago

Find the slope of the line through the pair of points. A(2, 3), P(2, 9)

AVprozaik [17]

$A(x_1;\ y_1);\ B(x_2;\ y_2)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}\\\\-------------------\\\\A(2;\ 3)\to x_1=2\ and\ y_1=3\\B(2;9)\to x_2=2\ and\ y_2=9\\\\m=\dfrac{9-3}{2-2}=\dfrac{7}{0}-divided\ by\ 0\\\\Answer:\ The\ slope\ unde fined. It's\ a\ vertical\ line\ x=2.$

8 0

3 years ago