All categories

3 years ago

Please help PLEASE Which equations are equal to this equation? 14(8x + 56) = 20

Mathematics

2 answers:

kvasek [131]3 years ago

7 0

Answer:

Here are a few equivalent equations:

112x + 784 = 20

112x = -764

x = -6.82

Step-by-step explanation:

14(8x + 56) = 20

Multiply

112x + 784 = 20

Subtract 784 from both sides of the equation

112x = -764

x = -6.82

Hope this was useful to you!

TEA [102]3 years ago

3 0

Answer:

x = - 191/28

Step-by-step explanation:

14 (8x + 56) = 20

112x + 784 = 20

112x = 20 - 784

112x = - 764

x = - 764/112

x = - 191/28

You might be interested in

Dina discovered a water leak in her basement and called a plumber to fix and drain it. W(t) the amount of water in the basement

solniwko [45]

Answer:

x-intercept: The plumber drained all the water out after 9 hours.

Relative maximum or minimum: The amount of water reached 70 liters before the draining began.

Increasing or decreasing interval: Over the first 5 hours, the leak just got bigger and bigger.

Step-by-step explanation:

W(t) is the amount of water in the basement. When W(t) = 0, there is no water in the basement. When W(t) = 0, W(t) is a x-intercept. So, x-intercept: The plumber drained all the water out after 9 hours.

The water level gets to a relative maximum after about 5 hours, when the water reaches about 70 liters. So, relative maximum or minimum: The amount of water reached 70 liters before the draining began.

The water level keeps increasing until the relative maximum. That is at 5 hours when the water level is 70 liters. After that point, the water level decreases as the water is being drained until the water level is 0 at 9 hours. So, the increasing or decreasing interval: Over the first 5 hours, the leak just got bigger and bigger.

Hope this helps!

5 0

3 years ago

A boutique specializes in leather goods for men. Last month, the company sold 20 wallets and 53 belts, for a total of $3,517. Th

Vlada [557]

Answer:

25 wallets and 53 belts

Step-by-step explanation:

Firstly, we need to represent the amount with variables ( alphabets)

Let the amount charged for a belt be $b and the amount charged for a wallet be $w.

Now, we were told that last month, the company sold 20 wallets and 53 belts for 3,417.

Now if 1 wallet costs $w, 20 wallets would cost $20w

In a likewise manner, if 1 belt costs $b , 53 belts will cost $53b.

Now since we know the total cost of both equals 3,417 , this mean

$20w + $53b = $3,417

First equation.

In likewise manner,

$28w + $97b = $6,041

Second equation

This simply shows we have 2 equations to solve simultaneously.

From equation 1, we can see that

20w = 3,417 - 53b

Equation 2 can also be expressed as:

1.4(20w) + 97b = 6041

We now substitute for 20w in equation 2.

1.4(3,417 - 53b) + 97b = 6041

4783.8 - 74.2b + 97b = 6041

97b - 74.2b = 6041 - 4783.8

22.8b = 1257.2

b = 1257.2/22.8 = apprx 55 belts

20w = 3,417 - 53b

Substitute for b here.

20w = 3417 - 53(55)

20w = 3417 - 2915

20w = 502

w = 502/20 = apprx 25

3 0

3 years ago

What should you do first to simplify the expression (43 + 9) ÷ 76 + 5

zzz [600]

Hi there!

You should always find the value inside the parenthesis first when simplifying an equation.
Tell me if you need help solving the equation!

Hope this helps!

4 0

3 years ago

Read 2 more answers

How do i divide 806 by 9 with long division, im getting 9 remainder 6

d1i1m1o1n [39]

9/806 = 9 goes into 80 8 times which gives you 72. 80-72 is 8 and when you bring down the 6, 9 goes into 86 9 times with a remainder of 5 . This gives you 89 R 5

8 0

3 years ago

Please help me please :(

leonid [27]

I think it’s step one because when doing a problem like that you would change it into an improper fraction. Hope this helped.

4 0

3 years ago