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notsponge [240]
3 years ago
5

Ello bruv... can y'all help me!:

Mathematics
1 answer:
Phoenix [80]3 years ago
6 0

(C)

Step-by-step explanation:

We are going to use the following conversions for this problem:

1 km = 1000 m

1 hr = 60 min

The key is to multiply the given quantity with factors such that the unwanted units cancel out, leaving only the ones we need. In this case, we need meters and minutes. The set up goes like this:

8\dfrac{\text{km}}{\text{hr}}×\dfrac{1000\:\text{m}}{1\:\text{km}}×\dfrac{1\:\text{hr}}{60\:\text{min}}

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-8 x (-8) Please help
emmasim [6.3K]
The answer to this is 64
6 0
3 years ago
Simplify the expression. Write your answer as a power.<br><br> (−5/7)^8⋅(−5/7)^9
dem82 [27]

Answer: (-\frac{5}{7})^{17}

Step-by-step explanation:

The expression can be simplified by applying the a properties of exponents, specifically the Product of powers, which states that:

(b^a)(b^c)=b^{(a+c)

Where b is the base and a and c are exponents.

 Then simplify it by rewriting the base (-\frac{5}{7}) and adding the exponents of the expression (8 and 9).

You will get the expression simplified and written as a power:

(-\frac{5}{7})^8(-\frac{5}{7})^9=(-\frac{5}{7})^{(8+9)}=(-\frac{5}{7})^{17}

3 0
3 years ago
Mrs. Salas drives 115 miles per week to give 9 voice lessons. She deducts the cost of eight gallons of gasoline at $2 per gallon
ladessa [460]

the answer is $299. If you write an equation, it would be x=35(9)-16. $35 each for 9 lessons. And 2*8= 16.

x=35(9)-16

x=315-16

x=299

7 0
3 years ago
A group of preschoolers has 8boys and 24 girls. What is the ratio of girls to all children
Zepler [3.9K]
The  total number of kids:
8+24 = 32
the ratio is 24:32
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5 0
3 years ago
Read 2 more answers
What is <br><br>-7x3(4+-5)=​
nlexa [21]

\text{Hey there!}

\bf{-7\times(4+(-5))}

\bf{First, you\ need\ to\ do \ is\ PEMDAS}\\\\\\\text{Parentheses, Exponents, Multiplication, Division,Addition\ \& Subtraction}

\bf{ -7\times3(4+(-5))}\\\bf{-7\times3=-21}\\\bf{-21(4+(-5))}\\\bf{4+(-5)= -1}\\\bf{-21\times-1=21}\\\\\boxed{\boxed{\bf{Answer: 21}}}\checkmark

\text{Good luck on your assignment and enjoy your day!}\\\\\\\frak{LoveYourselfFirst:)}

6 0
3 years ago
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