8. On a trip, a student drove 40 miles per hour for 2 hours and then drove 30 miles per hour for 3

Mathematics

2 answers:

skad [1K]3 years ago

8 0

Answer:

Step-by-step explanation:

MrRa [10]3 years ago

3 0

I have been trying but i am pretty sure it is 36 i think

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On tuesday, donovan earned $11 for $2 of babysitting. on saturday, he babysat for the same family and earned $38.50. how many ho

Sedbober [7]

If its going by $11 for 2 hours then he babysat ?

ok so $11= 2 hours

11 x 3= 33 half of eleven is 5.5

so 33+ 5.5 = $38.50 so I believe the answer is 6 hours and 30 min but I'm not 100 percent positive

3 0

3 years ago

getting home from trick or treat celia and emma counted their candies. half of celias candies is equal to 2/3 of emmas candies.

blagie [28]

Candies with celias and emmas is 60 and 45 respectively.

<u>Solution:</u>

Given, Getting home from trick or treat celia and emma counted their candies. Half of celias candies is equal to 2/3 of emmas candies.

They had a total of 105 candies altogether.

We have to find how many candies did each of them have.

Let the number of candies with celias be n, then number of candies with emma will be 105 – n.

Now according to given condition.

$\begin{array}{l}{\frac{1}{2} \times \text { celias candies count }=\frac{2}{3} \times \text { emmas candies count }} \\\\ {\rightarrow \frac{1}{2} \times n=\frac{2}{3} \times(105-n)} \\\\ {\rightarrow 3 \times n=2 \times 2 \times(105-n)} \\\\ {\rightarrow 3 \times n=2 \times 2 \times(105-n)} \\\\ {\rightarrow 3 n=4(105-n)} \\\\ {\quad \rightarrow 3 n=420-4 n} \\\\ {\rightarrow 3 n=420-4 n} \\\\ {\rightarrow 3 n+4 n=420} \\\\ {\rightarrow 7 n=7 \times 60} \\\\ {\rightarrow n=60}\end{array}$

Hence, candies with celias and emmas is 60 and 45 respectively.

4 0

3 years ago

A group of students surveyed chose baseball and soccer as their favorite sport in the ratio 3:8

Anna [14]

$3x-\ those\ who\ chose\ baseball\\8x-\ those\ who\ chose\ soccer\\\\
a)\\3x+8x=132\\\\
11x=132\ \ \ | divide\ by\ 11\\\\x=12\\\\
8x=8*12=96\\\\
96\ chose\ soccer.\\\\\
b)\\8x=56\ \ \ | divide\ by\ 8\\\\x=7\\\\
3x=3*7=21\\\\
21\ chose\ baseball.$

5 0

2 years ago

Can you please send me answers for this quick

rosijanka [135]

Answer:

Its blocked for me.

Step-by-step explanation:

6 0

3 years ago

artcher [175]

Perpendicular lines have negative reciprocals. This means that if you multiply the slopes of both lines, the product will be a -1.

In your given point-slope equation, the slope is 1/3. Therefore, the negative reciprocal of 1/3 must be -3.

Out of the given options:

y + 2 = -3(x — 4)
y = -3x - 5

are the linear equations that are perpendicular to y — 1 = 1/3(x + 2).

Therefore, the correct answers are Options 1 and 3.

Please mark my answers as the Brainliest if you find my explanations helpful :)

7 0

2 years ago