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love history [14]

2 years ago

8

Bailey is sorting a set of 2 dimensional shapes as parallelograms or quadrilaterals. All but one of the shapes belong in both ca

tegories.Which shape is it?
A. trapezoid
B. square
C.rectangle
D. rhombus

1 answer:

likoan [24]2 years ago

7 0

Answer:

The trapezoid

Step-by-step explanation:

All the other shapes have equal angels the trapezoid has only one pair of parallel side.

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Twin brothers, Billy and Bobby, can mow their grandparent's lawn together in 53 minutes. Billy could mow the lawn by himself

podryga [215]

5353 minutes = 89.22 hours
Maybe the figures should be 53 and 20??

Let's let Billy = A
The formula to use for work problems is
Time = (A*B) / (A+B)

53 = ( (A +20)* A) / (A +20 + A) )
53 = ( A^2 + 20A ) / (2A + 20)
A^2 + 20A -106A -1060
A^2 -86A -1060
A = 96.935
Bobby Mows in 116.935 minutes

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3 years ago

The school basketball team won the game. The finals score was a two digit number. The digit in the tens place was the number tha

8_murik_8 [283]

Answer:

1? Because its the only number beetween 2 and 0.

5 0

2 years ago

Which pair of numbers is relatively prime A.)57 and 96 B.)68 and 118 C.)70 and 195 D.)143 and 323

creativ13 [48]

I think is D , hope i answer fast enough haha :D

8 0

2 years ago

Read 2 more answers

During a sale a store offered a 40% discount on a particular camera that was originally price at $450 after the sale the discoun

Artemon [7]

£378

$450×0.6=$270.

$270×1.4=$378

3 0

3 years ago

A mattress store sells only king, queen and twin-size mattresses. Sales records at the store indicate that the number of queen-s

Nitella [24]

Answer:

The probability that the next mattress sold is either king or queen-size is P=0.8.

Step-by-step explanation:

We have 3 types of matress: queen size (Q), king size (K) and twin size (T).

We will treat the probability as the proportion (or relative frequency) of sales of each type of matress.

We know that the number of queen-size mattresses sold is one-fourth the number of king and twin-size mattresses combined. This can be expressed as:

$P_Q=\dfrac{P_K+P_T}{4}\\\\\\4P_Q-P_K-P_T=0$

We also know that three times as many king-size mattresses are sold as twin-size mattresses. We can express that as:

$P_K=3P_T\\\\P_K-3P_T=0$

Finally, we know that the sum of probablities has to be 1, or 100%.

$P_Q+P_K+P_T=1$

We can solve this by sustitution:

$P_K=3P_T\\\\4P_Q=P_K+P_T=3P_T+P_T=4P_T\\\\P_Q=P_T\\\\\\P_Q+P_K+P_T=1\\\\P_T+3P_T+P_T=1\\\\5P_T=1\\\\P_T=0.2\\\\\\P_Q=P_T=0.2\\\\P_K=3P_T=3\cdot0.2=0.6$

Now we know the probabilities of each of the matress types.

The probability that the next matress sold is either king or queen-size is:

$P_K+P_Q=0.6+0.2=0.8$

8 0

2 years ago