Solve the following proportion. 15/21=5/x
A. 3
B. 105
C. 7
D. not given
Answers
15 / 21 = 5 / x /*x
15 / 21 * x = 5 /*21
15 * x = 5 * 21 /15
x = 5 * 21 / 15
x = 7
The correct result would be C. 7.
15 * x = 21 * 5
15x = 105
x = 7
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Answers
Answer:
i know the answer for question 8 & 9
8) Volume is the amount of space a 3D shape takes up.
A cubic cm block takes up 1 cubic cm. This is written as 1 cm³.
You can work out the volume of a shape by multiplying height × width × depth.
If the shape is made of cubic cm blocks, you can count the cubes to find the shape's volume.
9) The face or surface of a solid on its sides. That is, any face or surface that is not a base. See also. Lateral surface area, prism, pyramid, cone, cylinder.
- i hope this helps
Answers
16
Answers
ANSWER:
The slope of the given equation is -2 and a point on the given line is (-1, 3)
SOLUTION:
Given, linear equation in two variables is y – 3 = -2(x + 1) ----- eqn (1)
We need to find the slope of the given equation and a point through which the given line passes.
Given equation is in the form of point slope form .i.e --- eqn 2
where,"m" is the slope of the line
is point on that line.
Now, by comparing (1) and (2)
m = -2
so, the slope of the given equation is -2 and a point on the given line is (-1, 3)
Answer: slope: − 2
y-intercept: ( 0 , 1 )
x y 0 1 1 − 1
Step-by-step explanation: Graph the line using the slope and y-intercept, or two points.
Answers
Answer:
x = -7
Step-by-step explanation:
Start with your given equation.
8x - 2 = -9 + 7x
Next, subtract 7x from both sides of the equation and add like terms.
x - 2 = -9
Finally, add 2 to both sides of the equation and add like terms.
x = -7
Answer:
Step-by-step explanation:
x = -7
account :
8x-2=-9+7x
8x-7x=-9+2
X=-7
Answers
Answers
Answer:
37.5% decrease
Step-by-step explanation:
(V2−V1)/V1 ×100
=(85−136)/136 ×100
=−51136 × 100
=−0.375 × 100
=−37.5% change
=37.5% decrease
Thanks for letting me help!!