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vodomira [7]
3 years ago
6

I don’t understand plz I struggle with math so much plz help !

Mathematics
2 answers:
Alekssandra [29.7K]3 years ago
7 0
To solve the problem, set up a proportion like this:

\frac{5}{7} = \frac{20}{x}

The important thing to note here is that the fractions are proportionate to one another.  Meg's cat is in the numerator while Anne's cat is in the denominator.  Use cross multiplication to solve for the weight of Anne's cat.

5x = 7 * 20 \\ 5x = 140 \\ x=28

Anne's cat weighs 28 kgs.  The question asked how much <em>more </em>her cat weighs than Meg's, so use subtraction:

28 - 20 = 8

Anne's cat weighs 8 kgs more than Meg's cat.
bija089 [108]3 years ago
3 0
If the ratio is 5:7 and Meg's cat is 20 kilograms, we can say that 5*4(to figure this out, divide 20 by 5 in this problem) would be 20. We know what Meg's cat is 20 kilograms, but we need Anne's cat. Do the same thing, except with the other number in the ratio-7. Seven times 4 would equal 28. We are not done yet though. We need to know how many MORE kilograms Anne's cat is than Meg's cat. So, you would do 28 - 20 to equal 8 kilograms. Anne's cat is 8 kilograms more than Meg's cat. I hope this helps!
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3 years ago
What is the polynomial function of least degree whose only zeros are -3, ,-2, and 4 ?
victus00 [196]

Answer: (x³ - 2x² - 11x + 12)

Step-by-step explanation:

Recall that zeroes can be transformed into factors by subtracting them from x. This gives us the following factors:

(x - 1)(x + 3)(x - 4)

Now, if you multiply the first two factors together, you get the following:

(x² + 2x - 3)

Multiply that by the last factor, (x - 4), and you get this:

(x³ + 2x² - 3x - 4x² - 8x + 12)

This can be simplified:

(x³ - 2x² - 11x + 12)

And there's your final answer. Hope this helped! (x³ - 2x² - 11x + 12)

7 0
3 years ago
What is the value of 5 in 13,542 plz help
Doss [256]

Answer:

500

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
Find the amount in the bank after 7 years if interest is compounded quarterly?
qwelly [4]

Answer:

a) amount in the bank after 7 years if interest is compounded quarterly is $6,605

b) amount in the bank after 7 years if interest is compounded quarterly is $6,612.57

Step-by-step explanation:

We are given:

Principal Amount P= 5000

Rate r= 4% = 0.04

time t = 7 years

The formula used is: A=P(1+\frac{r}{n})^{nt}

where A is future value, P is principal amount, r is rate, n is compounded value and t is time

a) Find the amount in the bank after 7 years if interest is compounded quarterly?

If interest is compounded quarterly then n = 4

Using values given in question and finding A

A=P(1+\frac{r}{n})^{nt}\\A=5000(1+\frac{0.04}{4})^{4*7} \\A=5000(1+0.01)^{28}\\A=5000(1.01)^{28}\\A=5000(1.321)\\A=6,605

So, amount in the bank after 7 years if interest is compounded quarterly is $6,605

b) Find the amount in the bank after 7 years if interest is compounded monthly?

If interest is compounded quarterly then n = 12

Using values given in question and finding A

A=P(1+\frac{r}{n})^{nt}\\A=5000(1+\frac{0.04}{12})^{12*7} \\A=5000(1+0.003)^{84}\\A=5000(1.003)^{84}\\A=5000(1.322)\\A=6,612.57

So, amount in the bank after 7 years if interest is compounded quarterly is $6,612.57

6 0
3 years ago
Find the answer to zero point 19 repeating times square root of 150 end square root and select the correct answer below. Also, i
ehidna [41]
The answer is 2.327015
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