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3 years ago

In problem 14 above, how can you decide if your answer is reasonable?

Mathematics

1 answer:

soldier1979 [14.2K]3 years ago

5 0

By showing some work. 352 students is multiplied by the $12 each student contributes. In this case your answer is correct.

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Which property is illustrated by this problem?

Mnenie [13.5K]

This would be communicative property cause when solve the left side then the right they both come up to being 30=30.

8 0

3 years ago

Terry sees an offer about a refurbished phone which is 35% off the original price the new price is £78 how much was the phone be

erica [24]

part/whole=0.65

78/whole=0.65

whole =78/0.65 =120 £

5 0

4 years ago

Read 2 more answers

Use the lattice method to multiply

castortr0y [4]

Answer: Use the lattice method to multiple 54x 9

If it's 54 times 9 using the lattice method your Answer is:

54 times 9

is 486

Hope this helps..... Stay safe and have a great day!!! :D

4 0

3 years ago

There's a sale 40% off all sweaters Abby buys one sweater she got she saved $20 what was the total price.

kakasveta [241]

Answer:

$50

Step-by-step explanation:

.40C = $20

C = $20/.40 = $50

7 0

3 years ago

The 888 mile trip to the ranch took three times as long as the 280 mile trip to the ocean because the speed was 4 mph less than

ziro4ka [17]

Alright, lets get started.

Suppose the speed to the ranch = x mph

So, speed to the ocean will be = (x-4) mph (because the speed was 4 mph less than the speed to the ranch)

Distance to the ranch = 888 miles

time moving to the ranch $= \frac{distance}{speed}$

time moving to the ranch $= \frac{888}{x}$

time moving to the ocean $= \frac{280}{x-4}$

As per given in question, the 888 mile trip to the ranch took three times as long as the 280 mile trip to the ocean , means

$\frac{888}{x} = 3 * \frac{280}{x-4}$

$\frac{888}{x}= \frac{840}{x-4}$

Corss multiplying

$888 (x-4) = 840 x$

$888 x - 3552 = 840 x$

$48 x = 3552$

$x=74$

Hence speed to ranch = 74 mph

Hence speed to ocean = $74 - 4 = 70$ mph

time for trip to ranch = $\frac{888}{74} = 12$ hrs

time for trip to ocean = $\frac{280}{70} = 4$ hrs

So, speed to ranch is 74 mph and trip time is 12 hrs and speed to ocean is 70mph and time is 4 hrs.

Hope it will help :)

3 0

3 years ago

Read 2 more answers