MATHEMATICS HIGH SCHOOL

Gary has $250.00 for school supplies. He spends twice as much money on books as hedoes on cleaning supplies. After he pays the cashier, he has $70 left. How much did he
spend on each?

Answers

Answer 1

Answer:

60 on cleaning supplies

120 on books

Step-by-step explanation:

= 250-70= 180

= 180÷60=3

if theres 3 60s and he spent double on books two sixtys would go to books

= 60×2=120

remaining 60 goes to cleaning supplies.

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A total of 120,000 votes were cast for 2 opposing candidates, Garcia and Pérez. If Garcia won by a ratio of 5 to 3, what was the number of votes cast for Pérez?

Answers

Total votes = 120,000
Gracia won by a ratio of 5 : 3
so, total votes earned by Gracia = 5/8 * 120,000 = 75000

So, number of votes cast for Pérez = (120000 - 75000)
=

If the factors of a polynomial are x+7 and x-3, what values of x make that polynomial 0?

Answers

The values that make x that polynomial would be 0 would be 7 and negative 3.

Hope this helps:)

The rational and the irrational numbers together are called whole numbers. true or false

Answers

the answer is false

Step-by-step explanation:

natural numbers and zero are whole numbers

The answer is false

Which letter in the word happy has an order 2 rotational symmetry

Answers

The letter H is the only one in the word "happy" that has the rotational simmetry on the order of two. In fact, if you rotate the letter H 180° clockwise or counterwise, it will still look the same; it is called "on the order of two", exactly because you've rotated it 180° (two rotations of 90°).

Answer

Letter H

Explanation
The order of symmetry is the number times an object appears exactly the same when rotated about a certain axis.
From the word HAPPY, only letter H will have 2 order of symmetry.
When rotated at 180°, It will look exactly the same.
A, P, P and Y have only 1 order of symmetry.

The price of a plane ticket has increased from $150 to $200. By what percent has the price increased? A) 15%
B) 25%
C) 33%
D) 50%

Answers

Answer:

The answer is the option C

$33\%$

Step-by-step explanation:

we know that

$\$150$ ------> represent the $100\%$

by proportion

Find what percent has the price increased

$(100)/(150)(\%)/(\$)=(x)/(200-150)(\%)/(\$) \n \nx=(200-150)*100/150\n \nx=50*100/150\n \nx=33.33\%$

There is a formula to figure out questions like this:

The price difference/ the original price and times the whole equation by 100 (to get the percentage).

> ($50/$150) x 100 = 33% (rounded)

Solve the system of equations algebraically. Show all of your steps.
y=x^2+2x
y=3x+20