3 years ago

What is the answer? if x=3? 3(x+7-2) + 45?

Mathematics

1 answer:

gulaghasi [49]3 years ago

6 0

Answer:

-21

Step-by-step explanation:

Replace x by given value

3(x+7-2) + 45

➡

3×(3+7-2) + 45 do the inside the parenthesis first

➡

3×8 - 45 = -21

You might be interested in

Why is the square root of 7 irrational

BigorU [14]

Answer:

dude you should know this one it's obviously not see and if it's a perfect square root then it wouldn't be irrational the answer B

3 0

2 years ago

ruben is buying bricks for a project. he knows that 5 bricks weigh 26 1/4. he wants to know the weight of 24 bricks

Phoenix [80]

Answer:

the weight of 24 bricks is :

$124\frac{4}{5}$

Step-by-step explanation:

$26\frac{1}{4} =26+\frac{1}{4} =\frac{26\times 4}{4} +\frac{1}{4} =\frac{105}{4}$

It is clear that there is a proportional relationship between the number of bricks and their weights then :

$\frac{26\frac{1}{4} }{5} =\frac{x}{24} \Longrightarrow \frac{\left( \frac{105}{4} \right) }{5} =\frac{x}{24} \Longrightarrow \frac{26}{5} =\frac{x}{24}$

$\Longrightarrow x=\frac{26\times 24}{5} =\frac{624}{5} =124\frac{4}{5}$

8 0

2 years ago

Vanessa made 6 sandwiches for a party and cut them all into fourths. How many 1/4 sandwich pieces did she have?

zvonat [6]

She had 24 pieces.

6 / (1/4) = 24

7 0

3 years ago

Plz help this is due today NO LINKS OR GROSS PICTURES OR I Will REPORT And please show work

Scorpion4ik [409]

Answer:

the volume is 600

Step-by-step explanation:

15*8*5=600

v=w*h*l

3 0

3 years ago

Hi<br> khgbv h<br> ljv nkmj<br> gv hnyhrdsrfgbnkjnbhbbbhjik

kozerog [31]

Answer:

hihi

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers