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Andreas93 [3]
4 years ago
7

Help me correct this plz

Mathematics
2 answers:
Mars2501 [29]4 years ago
8 0
Let the total number be x, then
x/100 * 40=30
x=30*100/40
x=75

All the best
adelina 88 [10]4 years ago
5 0
The answer will be D) 75

To find this it’s easiest to find how many animals there are per percent. So to find this you simply have to divide 30 (the number of cats) by 40 (the percent that makes up) to find the number of animals per percent.

30/40

.75

Then you multiply this by 100 to find how many animals there are total.

.75(100)

75

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Which two points on the number line represent numbers that can be combined to make zero? B and D A and B C and D A and C
Lemur [1.5K]

Answer:

0 and 10 for this if im wrong sorry.

Step-by-step explanation:

4 0
3 years ago
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Find the perimeter of rectangle ABCD. That’s the full photo. Only half of the rectangle is provided. You should be able to solve
riadik2000 [5.3K]

Answer:

170°

Step-by-step explanation:

We can already see that measure ∠AD is equal to 85

A square has two halves, so this square will be added.

We will have to add 85 + 85 which equals 170°

5 0
3 years ago
PLEASE HELP!!!!<br> For the given piecewise function , find the value of F(-7) and f(0)
Andrews [41]

F(-7) = -3

F(0) = 4

.

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SO A

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
Two hoses from two different taps are used to fill a fishpond. The first hose alone
Paraphin [41]

Answer:  12 minutes

Step-by-step explanation:

Two rates for hoses A and B.  FP is the Fish Pond.

A = 20 min/FP   or (1/20)FP/min

B = 30 min/FP   or (1/30)FP/min

The time in minutes, X,  to fill  one FP:

                     1FP = X*((1/20)FP/min) + X*((1/30)FP/min)  

                     1FP = X*(1/20+1/30)FP/min

                     1FP = X*(2.5/30)FP/min

                      X = 12 minutes

4 0
2 years ago
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