3 years ago

Give me sample rate/ratio questions

Mathematics

1 answer:

IrinaK [193]3 years ago

3 0

There are 12 boys and 3 girls in Mrs. Van class. What is the ratio to boys to girls?

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For a square with a side length x + 1 , what is the area if x=9

Svetach [21]

Answer:

100 units squared

Step-by-step explanation:

The area of a square is A=s^2, where s is the side length. So, in your problem, the area would be A=(x+1)^2. If x = 9, then the formula would be A = (9+1)^2 = 100.

6 0

3 years ago

Read 2 more answers

2. A jeweler bought an antique watch for $500. He then sold it in his store $850. What was the percent of change in the price of

Mars2501 [29]

Answer:

70% increase

Step-by-step explanation:

8 0

2 years ago

Holly missed 7 of 185 school days this year. Approximately what percent of school days was Holly in attendance?

Alexandra [31]

185-7=178
So 178÷185=0.9621621
0.96×100=96%
OR APPROXIMATELY 96 percent

7 0

3 years ago

Solve the quadratic by factoring. x^2-5x-31=5

torisob [31]

Answer:

$x = - 4\: or \: x = 9$

Step-by-step explanation:

make one side equal to zero:

${x}^{2} - 5x - 36 = 0$

find two factors that multiply to -36 and add to -5 (-9 & 4)

${x }^{2} - 9x + 4x - 36 = 0$

factorise

$x(x - 9) + 4(x - 9) = 0$

$(x + 4)(x - 9) = 0$

solve for x

$x = - 4 \: or \: x = 9$

5 0

3 years ago

Solve for b. 3 (b−4 )+ 5b = 44 b =

Sergeu [11.5K]

B=7
3(b-4)+5b=44
3b-12+5b=44
8b=44+12
8b=56
b=7

7 0

3 years ago