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2 years ago

Can someone help me on this I'm stuck

Mathematics

1 answer:

emmainna [20.7K]2 years ago

4 0

The answer is 7/16 in decimal it would be 0.4375 hope this helps

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Karen depostited $5000 as a certificate of deposit in a bank for a period of 3 years. The certificate or deposit pays a simple i

Ira Lisetskai [31]

Answer:

15% per year

7.5% half year

5000 * 7.5% = $375 every 6 months.

Step-by-step explanation:

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2 years ago

The second term of an arithmetic sequence is -39. The rule a, = a -1 + 12 can be used to find the next term of the

siniylev [52]

Step-by-step explanation:

the first one is the correct one

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a(2) = -51+12(2-1)=-39

I hope this helps

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3 years ago

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For the Black Panther Trip 420 students were scheduled to go. After collecting more parent surveys, 15% more students are going

natulia [17]

Answer: $ 10,988.25

Step-by-step explanation:

Hi, to answer this question, first we have to multiply the original number of students scheduled to go to the trip (420) by the added students’ percentage (15%) in decimal form (divided by 100)

420 x (15/100) = 420 x 0.15 = 63 students added

Adding the number of extra students to the original number:

420+63 = 483 students (total number of students)

Finally, we have to multiply the result by the cost of each admission ticket (22.75)

483 x 22.75 = $ 10,988.25

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2 years ago

Question 7: Solve this system A.(15, 10) B.(-15, 10) C.(-10, 25) D.(10, 15)

Alexandra [31]

Answer:

D. (10, 15)

Step-by-step explanation:

Hi there!

We are given the following system:

$\frac{1}{2}x$ +y=20

x+4y=70

And we want to solve it (find the values of x and y).

Let's use substitution for this problem, where we will isolate one variable on one side, while the other side contains an expression with the other variable. Then, we use the expression to solve for the variable that the expression contains, then use the value of that variable to solve for the aforementioned isolated variable.

Subtract $\frac{1}{2}x$ from both sides in the first equation

y=20- $\frac{1}{2}x$

Now substitute 20- $\frac{1}{2}x$ as y in x+4y=70

x+4(20- $\frac{1}{2}x$ )=70

Do the distributive property

x+80-2x=70

Combine like terms on the left

-x+80=70

Subtract 80 from both sides

-x=-10

Multiply both sides by -1

x=10

We found the value of x. Now let's use that value to find what y is

Since we know that y=20- $\frac{1}{2}x$ and x=10, we can substitute 10 as the value of x to solve for y

In that case,

y=20- $\frac{1}{2}$ (10)

Multiply

y=20-5

Subtract

y=15

The answer is x=10, y=15, or as a point, (10, 15), aka D

Hope this helps!

4 0

2 years ago