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Serjik [45]
3 years ago
10

What value from the set [4.5.6.7.8] makes the equation 8x + 1 = 57 true? Show your work?

Mathematics
2 answers:
Alinara [238K]3 years ago
6 0
8x+1=57
-1 -1
8x=56
divide 8
x= 7
sdas [7]3 years ago
5 0

Answer:

7

Step-by-step explanation:

8x+1=57 subtract 1 from each side

8x=56 divide by 8

x=7

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Y-3x=-4<br> 2x+y=11<br> Solve each system of equations by using a table
aniked [119]

first u need the value of any one variable

5 0
4 years ago
A hippopotamus weighs 7000 pounds. The weight of a monkey is 1/1000 the weights of a hippopotamus. How many more pounds does the
REY [17]

Answer:

The hippopotamus weighs 6,993 pounds more than the monkey.

Step-by-step explanation:

7,000 x 1/1000 = 7,000/1,000 = 7

7,000 - 7 = 6,993

6 0
3 years ago
The length of a rectangle is 6 inches longer than it is wide. If the area is 160 square inches, what are the dimensions of the r
BartSMP [9]

Answer:

L = 16

w = 10

Step-by-step explanation:

Givens

Area = 160 sqr inches

width = x

length = x + 6

Equation

Area = L * w

Solution

Substitute in the equation all of the givens.

160 = x(x + 6)                     Remove the brackets

160 = x^2 + 6x                   Subtract 160 from both sides.

160-160 = x^2 + 6x - 160

0 = x^2 + 6x - 160

This equation factors. Turn it around first

x^2 + 6x - 160 =  0

(x - 10)(x + 16) = 0

Answer

x (width) = 10

x + 16 = 16

8 0
2 years ago
Read 2 more answers
Their is a rectangle that has measurements in inches. If the width is 7/8 of an inch and the height is 2/3 of an inch, what is t
Alex Ar [27]

Answer:

Area of a rectangle = 7/12 of an inch

Step-by-step explanation

Area of a rectangle = Length × width

In this case, the length is represented by height

Height = 2/3 of an inch

Width = 7/8 of an inch

Area of a rectangle = Length × width

= 2/3 × 7/8

= (2 * 7) / (3 * 8)

= 14 / 24

= 7 / 12

Area of a rectangle = 7/12 of an inch

7 0
3 years ago
A plane climbs 20,000 feet to reach an elevation of 21,250 feet. Write and solve an equation to find the elevation from which th
german
21,250 - 20,000 = 1,250 

1,250 is the elevation at witch the plane took of.
5 0
4 years ago
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