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3 years ago

What is 2 times (2a + 7) equal to?

Mathematics

1 answer:

givi [52]3 years ago

5 0

Answer:

4a + 14

Step-by-step explanation:

This just means you must multiply every variable and number in the brackets.

2 x 2a = 4a

2 x 7 = 14

So now, it equals 4a + 14

I hope this helps!

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A movie is 2 hours and 28 minutes long. It starts at 7:50 P.M. At what time will the movie end?

saw5 [17]

7:50 plus 2 hrs = 9:50
9:50 plus 28 min= 10:18 pm

6 0

4 years ago

Read 2 more answers

A farmer wants to plant peas and carrots on no more than 200 acres of his farm. If x represents the number of acres of peas and

AfilCa [17]

Answer:

Option D.(60, 135)

Step-by-step explanation:

Let

x -----> the number of acres of peas

y ----> the number of acres of carrots

we know that

The inequality that represent the problem is equal to

$x+y\leq 200$

<em>Verify each case</em>

case A) (-50,160)

substitute the value of x and the value of y in the inequality and then compare the result

$-50+160\leq 200$

$110\leq 200$ ----> is true

The point is a solution for the inequality, but is not a viable solution because the number of acres can not be a negative number

case B) (80,160)

substitute the value of x and the value of y in the inequality and then compare the result

$80+160\leq 200$

$240\leq 200$ ----> is not true

therefore

The point is not a solution

case C) (75,-200)

substitute the value of x and the value of y in the inequality and then compare the result

$75-200\leq 200$

$-125\leq 200$ ----> is true

The point is a solution for the inequality, but is not a viable solution because the number of acres can not be a negative number

case D) (60,135)

substitute the value of x and the value of y in the inequality and then compare the result

$60+135\leq 200$

$195\leq 200$ ----> is true

therefore

The point is a viable solution

5 0

3 years ago

Read 2 more answers

the regular price of a calculator is $15.40. it goes on sale for 30% off the regular price. what is the amount of savings on the

nikitadnepr [17]

( 30 / 100 ) * (15.40 ) = ( 3 / 10 )* (15.40) = 36.20 / 10 = 3.62$.

7 0

4 years ago

Round 218 to the nearest hundred

Sergio [31]

When rounding to the nearest hundred, if the number in the tens place is less than 5, you should round downwards (keep the same number shown in the hundreds place). However, if the number in the tens place is 5 or greater, than you have to round up, which means adding one to the number currently in the hundreds place. So, for this problem, the digit 1 is in the tens place. Because 1 is less than 5, we know that we have to round down. Thus, 218 rounded to the nearest hundred is 200. Hope this helps!!

7 0

3 years ago

For Lilly‘s birthday she takes her for friends to the movies she buys herself all of her friends the movie tickets which cost 72

VladimirAG [237]

Answer:

6536.25

Step-by-step explanation:

Given that :

Number of friends = 4

Cost of movie ticket = 725 each

At concession stand:

Pop corn = 850

Number of popcorn = 2

Large soda = 575

Number of large sodas = 3

Discount given = 15%

Amount spent on movie ticket :

725 * 5 = 3625

Amount spent at concession stand :

Cost of popcorn + cost of large soda

(850 * 2) + (575 * 3) = 3425

15% discount on purchase :

Discount = ((1-0.15) * 3425) = 2911.25

Total amount spent :

3625 + 2911.25

= 6536.25

5 0

3 years ago