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Oksana_A [137]
3 years ago
7

-7/4 = 2/5x solve for x

Mathematics
2 answers:
Stells [14]3 years ago
6 0

Answer:

hmmm y =  -7/4 = 2/5  2 * 5 = 2.5

Step-by-step explanation:

Stells [14]3 years ago
4 0
X=-35/8 hope this helps
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Solve step by step 5.7d = 3.2d-8
stiv31 [10]

Isolate the d. Note the equal sign. What you do to one side, you do to the other.
Subtract 3.2d from both sides
5.7d (-3.2d) = 3.2d (-3.2d) - 8
2.5d = -8
Isolate the d. Divide 0.5 from both sides
(2.5d)/2.5 = (-8)/2.5
d = -8/2.5
d = -3.2
-3.2 is your answer for d
hope this helps

3 0
4 years ago
Read 2 more answers
Simplify the expression
nexus9112 [7]

Answer:

the first one

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
what's the length of one leg of a right triangle if the length of the hypotenuse is 25 units and the length of the other leg is
SVEN [57.7K]
20 units is the length of the other leg.
4 0
3 years ago
Please help <3!!!!!!!!!
GREYUIT [131]

Answer:

D

Step-by-step explanation:

the picture is extremely diffuse and out of focus.

but I think I understood the content.

first the easiest part : the straight line on the right side of the graph.

we see the y increases exactly like the x. so, x increases by 2, then y increases by 2 too.

therefore the slope is 1 (y change / x change), and the function is simply y = x

and the line only starts with x=2 and goes on for all x greater than 2.

just for that alone it can be only D, because all the other answer options violate that behavior.

and the left part of the function must confirms this.

first of all, it has to be for x < 2 (again, only D).

and I found |-x²| really funny. this is the same as simply x², as a squared number can only be positive. so, making it negative and then taking the absolute value of that result creates the same original positive number again.

and x² can't be the function, because that would be a parabola that starts at the origin (0, 0), and then curves up left and right from there.

so, this can't be our function in the graph.

again, D is the the only fitting answer.

6 0
2 years ago
The present age of the father is twice the age of his daughter. Ten years ago, the
Elenna [48]

Answer:

<h3>           The father is 40 and the daughter is 20.</h3>

Step-by-step explanation:

x           -  the present age of the daughter

2x         -  the present age of the fathter  

x - 10          -  the age of the daughter ten year ago

2x - 10        -  the age of the fathter ten year ago

Father is older than his dauther, so:

2x - 10 = (x - 10) + 20  

2x - 10 = x - 10 + 20  

2x - 10 = x + 10              {subtract x from both sides}

x - 10 = 10                      {add 10 to both sides}

x = 20

2x = 2·20 = 40

6 0
3 years ago
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