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3 years ago

A car travels at an average speed of 68 miles per hour. How long does it take to travel 255 miles?

1 answer:

4 0

It would take 5 times because if it goes 4 times it would reach 255 miles but if it goes 5 times it will pass the amount.

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Robert is writing a paper for language arts class. He can write 2/3 of a page in 1/4 of an hour. At what rate is Robert writing?

Irina-Kira [14]

Answer:

A) 2 2/3 pages per hour

Step-by-step explanation:

You would multiply 1/4 times 4 to get 1 hour

then you would multiply 2/3 times 4 which is 2 2/3

6 0

3 years ago

Triangle DEF is an isosceles, so DEF = DFE.

Katarina [22]

Answer:

m∠CFD= $105\°$

Step-by-step explanation:

we know that

m∠CFD+m∠DFE= $180\°$ ------> by supplementary angles

we have

that

m∠DFE=m∠DEF= $75\°$

m∠CFD+ $75\°=180\°$

m∠CFD= $180\°-75\°=105\°$

8 0

4 years ago

Read 2 more answers

WORTH ALOT!!! 25) A hockey player signs a contract with a starting salary of $840,000 per year and an annual increase of 6.5% be

Oduvanchick [21]

the answer is A I hope this helps

6 0

3 years ago

Please help!! I’m stuck on this

beks73 [17]

Answer:

B. $x = -4\,\lor \,x = -1$

Step-by-step explanation:

Let $\sqrt{-4-5\cdot x} = x$ , we solve for $x$ by algebraic means.

1) $\sqrt{-4-5\cdot x} = x$ Given

2) $-4-5\cdot x = x^{2}$ Definition of power/Symmetry of equality

3) $x^{2}+5\cdot x + 4 = 0$ Compatibility with addition/Commutative and associative properties/Existence of additive inverse/Modulative property

4) $(x+4)\cdot (x+1) = 0$ $x^{2}+(a+b)\cdot x +a\cdot b = (x + a)\cdot (x+b)$

5) $x = -4\,\lor \,x = -1$ Result

Hence, the correct answer is B.

7 0

3 years ago

Ian has 20 football cards, and Jason has 44 baseball cards. They agree to trade such that jason

Alina [70]

Answer:

12 trades

Step-by-step explanation:

Let's call 'x' the number of trades they will do.

After each trade, the number of cards Ian has increase by 1 (he gives 1 but receives 2), and the number of cards Jason has decrease by 1 (he receives 1 but gives 2), so after x trades, the number of cards Ian has is 20 + x, and Jason has 44 - x.

To find the number of trades when they will have the same amount of cards, we have that:

20 + x = 44 - x

2x = 24

x = 12 trades

8 0

3 years ago