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mihalych1998 [28]
3 years ago
5

Please help this is due tomorrow!!

Mathematics
2 answers:
olya-2409 [2.1K]3 years ago
4 0

Answer:

x+y=30 and x-y=8. Angel is 11 and Alex is 19

Step-by-step explanation:

30÷2=15

8÷2=4

15-4=11

15+4=19

19+11=30

Nikitich [7]3 years ago
3 0
Angel is 8 years old and Alex is 30 years old x-y=30
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Find the surface area of the figure below:<br> ???
Ulleksa [173]

Answer:

85 ft^2

Step-by-step explanation:

The four sides of the pyramid: 5×6÷2×4=60

The bottom of the pyramid: 5×5=25

60+25=85 ft^2

6 0
2 years ago
7th grade math help me please :(.
Anettt [7]
6a: 11x+9
6b: 5y+14
6c: -3c-10
6d: 15x+10y
6e: -2n+13n
6f: 5w-5z
6g: 19x+8y+9
6h: 11a+4b-5

hope this helps and is correct!!
8 0
3 years ago
Helen got a 7% reduction in the price of pair jeans that are normally $32. What is the approximate percent decrease in the price
Colt1911 [192]

A percentage is a way to describe a part of a whole. The approximate percent decrease in the price is 21.87%, thus, the correct option is B.

<h3>What are Percentages?</h3>

A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.

To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.

Given the reduction in the price is $7, while the original cost is $32. Therefore, the approximate percent decrease in the price is,

Percentage decrease = 7/32  × 100%

                                     = 21.87%

Hence, the approximate percent decrease in the price is 21.87%, thus, the correct option is B.

The correct question is:

Helen got a $7 reduction in the price of a pair of jeans that are normally $32. What is the approximate percent decrease in the price?

The percent decrease is approximately 15%.

The percent decrease is approximately 21%.

The percent decrease is approximately 43%.

The percent decrease is approximately 78%

Learn more about Percentages:

brainly.com/question/6972121

#SPJ1

3 0
2 years ago
For math: Add: (there both fractions) 2/5+1/2
liubo4ka [24]
1. Find the Least Common Denominator (LCD) of \frac{2}{5} , \frac{1}{2}
Method 1: By Listing Multiples<span>List out all multiples of each denominator, and find the first common one.

5: 5,10
2: 2, 4, 6, 8,10</span>

Method 2: By Prime FactorsList all prime factors of each denominator, and find the union of these primes.

5 : 5
2 : 2
Therefore, the LCD is 2 x 5 = 10
 2. Make the denominators the same as the LCD

\frac{2 * 2}{5 * 2} + \frac{1 * 5}{2 * 5}

3. Simplify. Denominators are now the same

\frac{4}{10} + \frac{5}{10}

4. Join the denominators

\frac{4+5}{10}

5. <span>Simplify

</span>\frac{9}{10}

<span>Done (Fact: Decimal Form 0.9)</span>
5 0
3 years ago
Read 2 more answers
HELP I give big brain! See attachment
Makovka662 [10]

Answer:

35

Step-by-step explanation:

Here is the full steps:

Distribute

-7(x+10)=7(5-x)

-7x-70=7(5-x)

Distribute

-7x-70 = 35-7x            → Answer for the attachment "35"

Add 70  to both sides of the equation

-7x-70+70=-7x+35+70

Simplify

-7x=-7x+105

Add 7x  to both sides of the equation

-7x+7x=-7x+105+7x

0 = 105

[RevyBreeze]

7 0
2 years ago
Read 2 more answers
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