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san4es73 [151]
3 years ago
15

What is x\3 so solve for x if it equals 90

Mathematics
2 answers:
Nataliya [291]3 years ago
8 0
X= 270
simplify the equation using cross multiplication
KonstantinChe [14]3 years ago
3 0
120 might be the answer because 90×3=120 so that is how I got the answer
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I NEED THIS ASAP please. can someone please answer this question i put the picture its on Simplify Expressions im giving 15 poin
kakasveta [241]

Answer:

in step 4

Step-by-step explanation:

we have

0.5(-12c+6)-3(c+4)+10(c-5)\\\\step1=-12c(0.5)+6(0.5)-3(c+4)+10(c-5)\\\\=-6c+3-3(c+4)+10(c-5)\\\\

so step 1 is correct

step 2

-6c+3-3(c+4)+10(c-5)\\\\=-6c+3+c(-3)+4(-3)+10(c-5)\\\\=-6c+3-3c-12+10(c-5)

so step 2 is correct

step 3

-6c+3-3c-12+10(c-5)\\\\=-6c+3-3c-12+c(10)-5(10)\\\\=-6c+3-3c-12+10c-50

so step 3 is correct

step 4

-6c+3-3c-12+10c-50\\\\=(-6c-3c+10c)+(3-12-50)\\\\=(-6-3+10)c+(-9-50)\\\\=(-9+10)c-59\\\\=c-59

so step 4 is incorrect

5 0
3 years ago
T
Marianna [84]

Solution:

<u>Note that:</u>

  • AB = EF
  • BC = EG = 6x - 8
  • 7x - 19 = 2x + 11
  • Perimeter of triangle: 24 + 2x + 11 + 6x - 8

<u>Solving for x:</u>

  • 7x - 19 = 2x + 11
  • => 7x - 2x = 19 + 11
  • => 5x = 30
  • => x = 30/5 = 6

<u>Substitute the value of x into the expression (24 + 2x + 11 + 6x - 8): </u>

  • 24 + 2x + 11 + 6x - 8
  • => 24 + 2(6) + 11 + 6(6) - 8
  • => 24 + 12 + 11 + 36 - 8
  • => 24 + 12 + 3 + 36
  • => 75 units

The perimeter of the triangle ABC is 75 units.

7 0
2 years ago
I'm confused on how to solve a right triangle given only one side measurement and one interior angle.
SVEN [57.7K]

Answer:

You use trigonometry.

Step-by-step explanation:

You can use soh cah toa. Basically you pic one side and if the interior angle is opposite or next to it, you you soh, or cah, or toa, it's based on where the angle is.

8 0
3 years ago
The sum of a number x and 5 equals 14.
Fudgin [204]
Sum means addition so the equation is x+5=14

To get the answer, just do 14-5 and the answer is 9
4 0
3 years ago
What is an ordered pair to the equation -6x+y=-4
balandron [24]

n

y

=

−

x

−

4

To find the x-intercept, substitute in

0

for

y

and solve for

x

.

0

=

−

x

−

4

Solve the equa

−

x

−

4

=

0

.

−

x

−

4

=

0

Add

4

to both sides of the equation.

−

x

=

4

Multiply each term in

x

=

−

4

by

−

1

x

=

−

4

To find the y-intercept, substitute in

0

for

x

and solve for

y

.

y

=

−

(

0

)

−

4

Simplify

−

(

0

)

−

4

.

Multiply

−

1

by

0

.

y

=

0

−

4

Subtract

4

from

0

.

y

=

−

4

These are the

x

and

y

intercepts of the equation

y

=

−

x

−

4

.

x-intercept:

(

−

4

,

0

)

y-intercept:

(

0

,

−

4

)

not too sure

6 0
3 years ago
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