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Simora [160]
3 years ago
8

Can u help me step by step need to fill in the blanks

Mathematics
2 answers:
Rina8888 [55]3 years ago
6 0
-18a+17b is the answer because you multiply by -1 to each
Vika [28.1K]3 years ago
3 0
The minus sign outside of the parentheses can actually be represented with -1 instead.

this means that you must distribute (multiply) -1 by the numbers inside of the parentheses.

keep in mind that when you multiply the -1 by the 2nd number inside, and the operation is subtract, instead of 17b, it would be -17b.

-1 • 18a = -18a
-1 • -17b = -17b

the final answer would be -18a + 17b :)
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At a school pep rally the ratio of students who wore red to those who wore yellow is 7 to 3 their are 300 students at the rally
Serhud [2]
Red to yellow.......7:3....added = 10
so 7/10 of the total students wore red and 3/10 of the total students wore yellow

and there are 300 total students...
7/10(300) = 2100/10 = 210 wore red
3/10(300) = 900/10 = 90 wore yellow

how many more wore red.....(210 - 90) = 120 more students wore red then yellow
5 0
3 years ago
SOLVE FOR 50 POINTS CORRECTLY! OR ELSE REPORT!
Trava [24]
Y=16.65
6.80 +9.85=16.65
4 0
2 years ago
Sean has 3 times as many vegetable plants as Liz and Sejuan combined. Liz has 3 vegetable plants, and Sejuan has 2 vegetable pla
DIA [1.3K]
Let
x------------><span>Sean vegetable plants
</span>y------------>Liz vegetable plants
z------------>Sejuan  vegetable plants

we know that
y=3
z=2
x=3(y+z)--------> 3(3+2)=15

the answer part A) is
Sean has 15 vegetable plants

part B

This is an example of a part-whole problem.----------> true
<span>This is an example of a comparison problem.-------> true
</span>Addition then multiplication can be used to solve the problem.------> true
5 0
3 years ago
d. If you double a certain number and subtrack 7 you get the same answer as when you add 5 to the number, Determine the number​
umka21 [38]

Answer:

12

Step-by-step explanation:

Let n = the number.

2n - 7 = n + 5

n = 12


Let’s check if we got the right answer by substituting 12 for n into the original equation.

2*12 - 7 = 12 + 5

24 - 7 = 17

17 = 17

4 0
1 year ago
HELP giving brainlest and more points
postnew [5]
<h2>Answer:</h2>

4.82 × 10⁻⁴

<h3>Explanation:</h3>

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

6 0
3 years ago
Read 2 more answers
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