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3 years ago

What is the value of X

Mathematics

1 answer:

musickatia [10]3 years ago

3 0

Answer:

x = 12

Step-by-step explanation:

the two equations shown should add up to 180. so I did this equation: (10x-20)+ (6x+8) = 180 and I solved for x

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An object is dropped from a height of 400 feet. The amount of time, in seconds, the object takes to hit the ground can be found

lidiya [134]

-16t^2+400=0

16t^2=400

take square root on both sides.

$\sqrt{16t^2} =\sqrt{400}$

4t=20

t=20/4

t=5

6 0

3 years ago

Factor 5v^2 - 23v - 10

AfilCa [17]

Answer:

$(5v + 2)(v - 5)$

Step-by-step explanation:

Hello!

The expression is written in the form of $ax^2 + bx + c$

Let's factor by grouping:

$ac = -50$

The sum of the factors of -50 should add up to -23.

-25 and 2 work for this.

Expand and factor:

$5v^2 - 23v - 10$
$5v^2 - 25v + 2v - 10$
$5v(v - 5) +2(v -5 )$
$(5v + 2)(v - 5)$

The factored expression is $(5v + 2)(v - 5)$

7 0

2 years ago

If Sophie gets $26.00 and Jack gets four times the amount as Sophie. How much do Jack get?

alina1380 [7]

Answer:

he gets 104$

Step-by-step explanation:

104 dollars

26x4=104

5 0

3 years ago

Read 2 more answers

Let x be the middle integer of three consecutive integers. What is the sum of these three integers

ololo11 [35]

Answer:

because x is the middle integer of three consecutive integers

=> The remaining 2 numbers respectively are x - 1 and x + 1

=> the sum of these three integers is

x - 1 + x + x + 1 = 3x

8 0

3 years ago

Attached geometry question. Please help. 100 points, will mark branliest.

-BARSIC- [3]

$\large{\rm{\underline{\underline{Answer:}}}}$

Since ∆AFB is similar to ∆ABC.

< F = < B (corresponding angle)
< G = < C (corresponding angle)
< A = common.

In ∆ABC,

⇛< A + < B + < C = 180°

⇛37° + 65° + < C = 180°

⇛102° + < C = 180°

⇛< C = 78°

We know that, < AGF / < G = < C

So, Measure of angle < AGF = 78° (ans)

6 0

2 years ago

What is the value of X​

What is the value of X