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3 years ago

Which of the following is a unit rate?

Mathematics

2 answers:

Fiesta28 [93]3 years ago

7 0

Answer: B 120miles/2hrs

Step-by-step explanation: I say this cause a rate is a ratio comparing quantities of different items. A unit rate is a rate with 1 in the denominator.

Kamila [148]3 years ago

6 0

Answer:

There is no clear pic. ask it Clearly again !!

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On my brother's 14th birthday, he was 160 cm tall. Within exactly one year, his height increased by 6%. How tall was he on his 1

Charra [1.4K]

Answer:

170 cm

Step-by-step explanation:

160+.06*160=160+9.6=169.6

8 0

3 years ago

Explain to me in words how you would find the slope of this line and explain answer

Andrews [41]

Answer:
7/3

Explanation:
The slope of the line is equal to the rise/run, or in other words, the number of units the line travels upwards over the number of units the line travels to the right.

We can identify the slope using any two points on the line. Here, we can use the two points that are marked on the picture. The second point is 7 units above the first and 3 units to the right of the first, so the slope of the line is equal to 7/3.

Another way to calculate the slope of the line is the use this formula:

(y2-y1)/(x2-x1)

The first point is at the coordinate (1,-4) and second point is at the coordinate (4,3). When we plug these two coordinates into the equation, we get this:

(y2-y1)/(x2-x1)
->(3-(-4))/(4-1)

When we simply the fraction, we would get 7/3 and that would give us the slope.

I hope this helps!

7 0

3 years ago

Sibal started with $500 in a bank account that does not earn interest. In the middle of every month, she withdraws 15 of the acc

Otrada [13]

After every month's withdrawals, 4/5 of the original amount at the start of the month will remain. The amount at the start of every month will change. Thus:
an = 4/5 (an-1) ; where a1 = 500.

4 0

3 years ago

Seven less than a number is 18

kherson [118]

X-7=18
+7 to both side
X=25

5 0

3 years ago

Kwame borrowed 300 Ghana cedis from a finance company. He repaid the loan in six equal installment 55 Ghana cedis. How much inte

Bumek [7]

Answer:

The amount of interest, he payed is 30 Ghana Cedis

Step-by-step explanation:

The amount Kwame borrowed from the finance company, P = 300 Ghana Cedis

The amount he repaid in each installment, M = 55 Ghana Cedis

The number of installments with which he repaid the loan, n = 6 installments

The amount of interest, "i", he payed, is given by the following formula;

The amount of interest, he payed, i = M × n - P

Therefore, i = 55 × 6 - 300 = 30

The amount of interest, he payed = i = 30 Ghana Cedis.

3 0

3 years ago