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AnnyKZ [126]
4 years ago
15

PLEASE HELP ME, I REALLY NEED HELP WITH THESE. PLEASE DONT ANSWER IF YOU DONT KNOW HOW. I REALLY NEED HELP!!!!!!!!!!!!!!!!

Mathematics
2 answers:
Xelga [282]4 years ago
7 0
1. x= 20
2. x=10
3. x=9
4. x=11
5. x=36.7
lubasha [3.4K]4 years ago
4 0
1)
5x + 15 =115
5x = 100
x = 20
2)
4x+28=68
4x = 40
x = 10
3)
10x-40=50
10x = 90
x = 9
4)
10x-40+50=180
10x+10=180
10x = 170
x = 17
5)
6x-10 +3x+100 = 180
9x+90=180
9x = 90
x = 9
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Find the x- and y-intercept of the line.<br><br> -4x +2y = 24
Daniel [21]
When y = 0,  x will equal the x-intercept. So, plug in 0 for the y-value to find the x-intercept.

  -4x + 2y = 24   Plug in 0 for y
-4x +2(0) = 24   Multiply
          -4x = 24   Divide both sides by -4
             x = -6

The x-intercept is (-6, 0).

When x = 0, y will be the y-intercept. So, plug in 0 for x and solve for y.

   -4x + 2y = 24   Plug in 0 for x
-4(0) + 2y = 24   Multiply
           2y = 24   Divide both sides by 2
             y = 12

The y-intercept is (0, 12).
4 0
3 years ago
Please help me I'm almost done​
sukhopar [10]

Answer:

\mathsf {SA = 112 in.^{2} }

Step-by-step explanation:

\textsf {Formula used :}\\\implies \textsf {SA = 2(length * width + width * height + length * height) }

\textsf {Given :}\\\textsf {Length = 5 in.}\\\textsf {Width = 4 in.}\\\textsf {Height = 4 in.}

\textsf {Solving :}

\implies \mathsf {SA = 2 (5 * 4 + 4 * 4 + 5 * 4)}

\implies \mathsf {SA = 2 (20 + 16 + 20)}

\implies \mathsf {SA = 2 (56)}

\implies \mathsf {SA = 112 in.^{2} }

5 0
2 years ago
Find the prime factorization of 70
Alekssandra [29.7K]

Answer:

2*5*7

Step-by-step explanation:

2*5=10

10*7=70

8 0
4 years ago
Teresa buys a $2700 refrigerator using an installment plan that requires 20% down. How much is the down payment? A. $27 B. $270
jeka57 [31]

Answer:

C $540

Step-by-step explanation:

2700 / 10 = 270 = 10%

270 x 2 = 540 = 20%

7 0
3 years ago
Read 2 more answers
PLEASE HELP ME! can someone explain this to me pls?​
IRINA_888 [86]
Pythagorean theorem: a2 + b2 = c2

(5)^2 + b2 = (6)^2
25 + b2 = 36
-25. -25

b2 = 11
square root both sides to cancel out

and then label the missing side on the triangle = √11

and then point to the theta symbol and find sin, cos, tan, csc, sec, and cot

for example: sin (opposite/hypotenuse) = √11 /6

SOHCAHTOH


8 0
3 years ago
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