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2 years ago

Mrs Simpson class has 10 girls and 15 boys what is the ratio of girls to boys

Mathematics

1 answer:

Tamiku [17]2 years ago

7 0

10:15

because it's girls:boys

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MATH WILL GIVE BRAINLIEST

Karolina [17]

Answer:

slope of CE is 2/3

Step-by-step explanation:

used the slope formula: change in y-values / change in x-values

8 0

2 years ago

Equation A: y = −x + 5

ioda

I am thinking the 3rd one >> -x+5=6x-2

(: (:

6 0

2 years ago

Car X leaves Northtown traveling at a steady rate of 55 mph. Car Y leaves 1 hour later following Car X, traveling at a steady r

Elis [28]

Unfortunately, you haven't shared the equations from which you're supposed to choose your answer.

But we can write our own.

When will the distance traveled by the 1st car = the distance traveled by the 2nd car?

55 miles + (55 mph)x = (60 mph)x

solve this for x: 55 miles = (60-55)x mph = 5 mph

x=11 hours

The two cars are the same distance from the starting point after 11 hours.

4 0

3 years ago

A supply company manufactures copy machines. The unit cost C (the cost in dollars to make each copy machine) depends on the numb

sergij07 [2.7K]

Answer: $\$18,629$

Step-by-step explanation:

Given

The unit cost is given by

$C(x)=0.6x^2-168x+30,389$

find the derivative of the unit cost and equate it to zero to obtain the minimum value

$C'(x)=0.6\times 2x-168\\\Rightarrow 0.6\times 2x-168=0\\\Rightarrow 1.2x=168\\\\\Rightarrow x=\dfrac{168}{1.2}\\\\\Rightarrow x=140$

Substitute 140 for $x$ in the cost function, we get

$C(140)=0.6[140]^2-168(140)+30,389\\C(140)=11,760-23,520+30,389\\C(140)=\$18,629$

7 0

2 years ago

Change 5 5/16 into a decimal and show work

Alex Ar [27]

to convert a fraction to a decimal, like say a/b is really simply the quotient of a ÷ b.

now, let's first convert the mixed fraction to improper, and then do the division.

$\bf \stackrel{mixed}{5\frac{5}{16}}\implies \cfrac{5\cdot 16+5}{16}\implies \stackrel{improper}{\cfrac{85}{16}}\\\\[-0.35em] \rule{31em}{0.25pt}\\\\ \cfrac{85}{16}\implies 85\div 16\implies 5.3125$

3 0

3 years ago