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torisob [31]
3 years ago
14

mr burns class is taking a field trip to the planetarium. The trip will cost $27 for each student. There are 18 students in his

class. Use compatible numbers to estimate the total cost of the field trip.
Mathematics
2 answers:
8090 [49]3 years ago
4 0
The correct answer is 30 times 20 equals 600.
avanturin [10]3 years ago
3 0
So, 27=30 and 18=20 rounded 

so what you would do now is multiply 30 x 20 and you get $600
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3 years ago
Stuart pays back two student loans over a 4-yr period. One loan charges the equivalent of 3% simple interest and the other charg
Ugo [173]

Answer:

The first loan L1 = $20,000

This is the loan with 3% simple interest

The second loan L2 = $4,000

This is the loan with 5.5% simple interest

Step-by-step explanation:

L1 + L2 = $24,000 ...(1)

4(3% of L1) + 4(5.5% of L2) = $3,280 ...(2)

Where the first term in equation (2) represents the total interest paid on loan 1 after 4 years

The second term represents total interest accruing to loan 2 after 4 years

From equation (1), we single out L1

L1 = 24,000 - L2

Substitute this value for L1 in equation (2)

288,000 + 10L2 = 328,000

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5 0
3 years ago
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Jack leaves from school and goes 4 miles north and 3 miles east to reach his home. How far is his home from school?
fiasKO [112]

Answer:

  • D. 5 miles

Step-by-step explanation:

Jack forms a right triangle with his route: the distance between the school and home is the hypotenuse.

<u>It is equal to:</u>

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3 years ago
Simplify this 9+ -4=
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Answer:

13

Step-by-step explanation:

<h3>13 the answer. that correct or what</h3>
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valina [46]

Answer:

y=-9

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We want to find an equation of a line that's perpendicular to x=1 that also passes through the point (8,-9).

Note that x=1 is a <em>vertical line </em>since x is 1 no matter what y is.

This means that if our new line is perpendicular to the old, then it must be a <em>horizontal line</em>.

So, since we have a horizontal line, then our equation must be our y-value of our point.

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Therefore, our equation is:

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And this is in standard form.

And we're done!

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