Answer:
4
Step-by-step explanation:
they're the same triangle, but one is bigger. the 2,5 and 5 sides are equivalent, so with that we are able to know the big triangle is exactly 2x bigger. u multiply the 2 side (because it's equivalent to the x side) by 2 (bc the triangle is 2 times bigger) and you get 4 = x
Answer:
The job will take <u><em>75 minutes</em></u> if the Hewlett Packard copier is broken
Step-by-step explanation:
In this question, we are tasked with calculating the amount of time it will the Xerox copier to finish making the copies whilst working alone
First, let the number of copies to make be x
Thus, the rate at which both copiers deliver when working together is x/30 copies per minute
If the Hewlett Packard is working alone, its rate is x/50 copies per minute
Let the time taken for the Xerox copier to complete its work be y minutes. Its working rate is thus x/y copies per minute
When we add the individual working rates, we have the joint working rate.
Hence, mathematically;
x/50 + x/y = x/30
Multiply through by 1/x
1/50 + 1/y = 1/30
1/y = 1/30 - 1/50
1/y = (50-30)/1500
1/y = 20/1500
20y = 1500
y = 1500/20
y = 75 minutes
Thus, the job will take 75 minutes if the Hewlett Packard copier is broken
Answer:
3x-5y
Step-by-step explanation:
1) -8y - (x-4x) + 3y (Given)
2) -8y<u>-x+4x</u>+3y (Distribute the negative to x and -4x)
3) 3x-5y (Combine like terms)
Answer:
C. 6 inches
Step-by-step explanation:
It is a 45, 45, 90 triangle because there is a 90 degree angle and since both of the legs are equal it is an isosceles triangle so the two angles are equal, so they can both only be 45 because together they have to equal 90.
That means the two radii are x and the hypotenuse is x√2 so √72 = x√2
√72 = x√2
now you divide both sides by √2 so that the x is alone
√72/√2 = x you have to multiply the √72/√2 by √2 because the denominator can not be a radical, You dont have to do it to the x because you are multiply both the numerator and denominator by√2 so it is like 1
√72/√2 * √2/√2
√144/√4 the √144 is 12 and the √4 is 2
12/2 now simplify
6
DE equals 7.
Because it is the same length of BE.
