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3 years ago

This weekend, Jerome earned $252.50 in all. What was the dollar amount of the

Mathematics

1 answer:

Nata [24]3 years ago

6 0

We need more info this question is confusing

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Tina's favorite shade of teal is made with 7 milliliters of blue paint for every 5 milliliters of green paint. Tyler's favorite

Wittaler [7]

Answer:

brighter

Step-by-step explanation:

tiana ratio = 7:5

tyler ratio = 5:7

compare 7:5 and 5:7

cross multiply =

tiana tyler

49 25 t

herefore tiana is brighter

8 0

3 years ago

Ession below?<br>3(5x + 7) – 6(4 – 2x)

Korvikt [17]

Answer: 27x-3 :)

Step-by-step explanation:

7 0

4 years ago

Read 2 more answers

Please help on question 4.<br> (Questions 1, 2, and 3 have been answered.)

ss7ja [257]

Answer:

Step-by-step explanation:

So, the longest tooth is 4 3/4 and the shortest is 3 1/4. So if you subtract 4 3/4 - 3 1/4, you will get the answer 1 2/4, which you can simplify to 1 1/2 or 1.5 :)

6 0

3 years ago

A water balloon is 5 feet above the ground when Sally launches it into the air. Use the quadratic equation 0 = -t^2 + 4t + 5 to

rodikova [14]

Answer:

$t=5\ sec$

Step-by-step explanation:

we have

$-t^{2} +4t+5=0$

Solve the quadratic equation to find the zero's or x-intercepts

Remember that

The x-intercepts are the values of x when the value of y is equal to zero ( water balloon reach the ground)

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-t^{2} +4t+5=0$

$a=-1\\b=4\\c=5$

substitute in the formula

$t=\frac{-4(+/-)\sqrt{4^{2}-4(-1)(5)}} {2(-1)}$

$t=\frac{-4(+/-)\sqrt{36}} {-2}$

$t=\frac{-4(+/-)6} {-2}$

$t=\frac{-4(+)6} {-2}=-1$

$t=\frac{-4(-)6} {-2}=5$

therefore

the solution is $t=5\ sec$

7 0

3 years ago

Read 2 more answers

What is -2/3x+1/3+x=2/5? thanks.

OverLord2011 [107]

-2/3x +1/3 +x = 2/5
⇒ 1/3x + 1/3 = 2/5
⇒ 1/3x = 2/5 -1/3
⇒ x/3 = 1/15
⇒ 15x = 3
⇒ x = 3/15
⇒ x = 1/5

3 0

3 years ago