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fredd [130]
3 years ago
10

Match each equation to its solution -3x+7=28

Mathematics
1 answer:
LuckyWell [14K]3 years ago
5 0

Answer:

-7

Step-by-step explanation:

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What is an equation of the line that passes through the point (8,-2) and is perpendicular to the line 4x+3y=3
Zepler [3.9K]

Answer:

y = 3/4x - 8

Step-by-step explanation:

7 0
1 year ago
What is the value of x in the equation 2.5(6x-4) = 10+4(1.5+0.5x)?
Phoenix [80]

Answer:

Step-by-step explanation:

As the equation is given in the question as follows.

2.5(6x-4)=10+4(1.5+0.5x)

open the bracket

2.5 × 6x - 2.5 × 4 = 10 + 4 × 1.5 + 4 ×0.5x

15x - 10 = 10 + 6 + 2x

15x - 2x = 16 + 10

13x = 26

x = 2

6 0
2 years ago
Two numbers are 10 units away in different directions from their midpoint, m, on a number line. The product of the numbers is –9
irinina [24]
In my opinion the answer is <span>m2 – 100 = –99
proof
</span>m2 – 100 =<span>(m – 10)(m + 10)
for eg. m=1, </span>(-9)(11)= <span>–99</span>
4 0
2 years ago
Read 2 more answers
the alabama river is 729 miles. if 1 mile equals 1.61 kilometers, find the length of the river to the nearest whole kilometer. (
Gekata [30.6K]
1 times 729=729 so

1mile=1.61kiloneter
multiply both sides by 729 to get 729 miles on left side
729 miles=1173.69 kilometer

whole
1173.6
6>5 so round up
1174


answer is 1174 kilometer
4 0
3 years ago
Cs.
kykrilka [37]

Answer:

Length of rectangle = 16 cm

Width of rectangle = 4 cm

Step-by-step explanation:

Given:

Area of rectangle = 64 cm²

Find:

Length and width

Computation:

Assume;

Length of rectangle = a

So,

Width of rectangle = a -12

Area of rectangle = l x b

So,

a(a-12) = 64

a² - 12a - 64 = 0

a² - (16-4)a - 64 = 0

a² - 16a+ 4a - 64 = 0

a (a-16) + 4(a-16)= 0

(a-16)(a+4) = 0

a= 16 , a = -4

So,

Length of rectangle = 16 cm

Width of rectangle = a -12

Width of rectangle = 16 -12

Width of rectangle = 4 cm

3 0
2 years ago
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