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4 years ago

there are 32 students in ms keys he homeroom. of the students 3/8 are boys. how many boys are in the homeroom

Mathematics

2 answers:

algol134 years ago

7 0

Answer: 12 out of the 32 would be boys. Hope this helps.

Cloud [144]4 years ago

5 0

Answer:

Step-by-step explanation:

Ok from scratch

32*3/8=12

So 12 boys

If you wanted to know girls subtract boys from total. (B= boys, G=Girls, T=Total).

So formula=G=T-B

B=3/8T

T=B+G

Hope this helps you very much!

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In ΔDEF, \overline{DF} DF is extended through point F to point G, \text{m}\angle FDE = (2x+4)^{\circ}m∠FDE=(2x+4) ∘ , \text{m}\a

Sedaia [141]

Answer:

Step-by-step explanation:

See the diagram attached:

In a triangle, the sum of interior angles is equal to the exterior angle.

According the diagram, the sum of interior angles is given as:

Sum of interior = <FDE+<DEF

Given

<FDE = 2x+4

<DEF = 3x+5

Sum of interior = 2x+4+3x+5

Sum of interior = 5x+9

Exterior angle = <EFG = 7x-5

Equate the interior to the exterior and calculate the value of x:

5x+9 = 7x-5

Collect like terms

5x-7x = -5-9

-2x = -14

x = -14/-2

x = 7

Next is to get <FDE:

<FDE = 2x+4

<FDE = 2(7)+4

<FDE = 14+4

<FDE = 18°

Hence the measure of <FDE is 18°

5 0

3 years ago

Brent rode his bicycle 4 miles on Saturday. There are 1,760 yards in a mile. How many yards did Brent ride on Saturday? Explain

Jet001 [13]

Answer:

7040 yards
zeros are place holders

Step-by-step explanation:

Each mile is 1760 yards, so 4 of them is ...

4 × 1760 yards = 7040 yards

This number is written as a decimal number in a "place value" system, so the position of the digit in the number tells its value.

In order for the 7 to indicate 7 thousand, it needs to be in the "thousands" place in the number. The 0s in the hundreds and units places are called "place holders" because they ensure the other digits appear in their proper places in the number.

If it were written in Roman Numerals, it would be $\overline{\text{V}}\text{MMXL}$ . In this system, the letter tells its value (and "place" comes into account in XL, which means X is subtracted from L). The system of Roman Numerals has no zeros, and doesn't need them.