3 years ago

MARKING PEOPLE AS BRAINLIST

Mathematics

1 answer:

il63 [147K]3 years ago

4 0

Answer:

Step-by-step explanation:

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A landscaper is designing a flower garden in the shape of a trapezoid. She wants the shorter base to be 3 yards greater than the

denis-greek [22]

From your information
Let shorter base = h +3 and longer base = h + 7 where h is the height.
Formula for area of a trapezoid is $A = \frac{1}{2} (b_1 +b_2)h
$
Substituting into the formula we get the following equation.
$150= \frac{1}{2}(h+3+h+7)h$
$150 = \frac{1}{2} (2h+10)h$
$150=h^2+5h$
This is a quadratic equation which I will solve by factoring.
$h^2+5h-150 =0$
$(h-10)(h+15)=0$
$h-10= 0 ..... h=10$ this is a useable answer (it's positive and length must be nonnegative)
$h+15=0 .... h=-15$ can't use this answer
so shorter base = 10 + 3 = 13 yards and longer base = 10 + 7 = 17 yards

7 0

3 years ago

Four is no less than the quotient of a number x and 2.1.

Alenkinab [10]

X/2.1 < or equal to 4

Hope this helps!

6 0

3 years ago

Two jugs are filled with water. If you remove 1 liter of water from the first jug, then the two jugs contain the same amount of

lyudmila [28]

Let x be the first jug, y the second jug.

From first statement, subtracting 1 from x, makes them equal:
x - 1 = y

From second statement, subtracting 2 from y, makes it half of x:
x/2 = y-2

Solve system with substitution:
x/2 = (x-1) -2
x/2 = x - 3
x- x/2 = 3
x/2 = 3
x = 6

y = x-1 = 6-1 = 5

Therefore the largest jug contains 6 liters.

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4 years ago

melissa earned 87 points on her test elizabeth earned e fewer points than melissa write an expression that shows how many points

Setler [38]

Answer:

Step-by-step explanation:

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3 years ago

Can someone please help me out with this? I can’t figure out exactly what they are saying.

tia_tia [17]

Answer:

Its English :))))))