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Lesechka [4]
3 years ago
11

Which linear equations have one solution? Check all that apply.

Mathematics
1 answer:
Nina [5.8K]3 years ago
7 0
Its the third and the fourth one
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What is the circumference of a circle<br> with radius 64 inches? Write your answer<br> using pi.
ch4aika [34]

Answer: 128π

Steps:

The formula for circumference for a circle is 2πr

2π * 64

128π

5 0
3 years ago
Jessica is a custodian at Oracle arena. She waxes 20 mi squared of the floor 3/5 of an hour. Jessica waxes the floor at a consta
Delicious77 [7]

Answer:

At The given rate, the area of floor that Jessica can wax is 33.3 m²

Step-by-step explanation:

Given as :

The area of floor waxed = 20 square meters

The time taken to waxed 20 square meters floor = \dfrac{3}{5} hours

Let The area of floor waxed per hour = A m²

<u>Now, Applying unitary method</u>

∵ In \dfrac{3}{5} hours, The  area of floor waxed = 20 m²

∴ In 1 hour , The area of floor waxed = \frac{20}{\frac{3}{5}} m²

I.e In 1 hour , The area of floor waxed = \frac{20\times 5}{3}m²

Or, In 1 hour , The area of floor waxed = \dfrac{100}{3} = 33.3 m²

Or, In 1 hour The area of floor waxed = A =  33.3 m²

Hence, At The given rate, the area of floor that Jessica can wax is 33.3 m² Answer

5 0
3 years ago
At a middle school the ratio of 7th graders to 8th graders is 4:5. If there are 270 7th and 8th graders, how many 8th graders ar
inessss [21]

Answer:

I think it's 337 or 338

Step-by-step explanation:

you divide the number of 7th graders by the radio to 8th graders and multiply it by the radio of 8th graders to 7tg graders.

7 0
3 years ago
Read 2 more answers
2/8 and 1/2 write &lt; or &gt;
Evgesh-ka [11]

Answer:

0.5 > 0.25

Step-by-step explanation:

2/8 = 1/4 = 0.25

1/2 = 0.5

5 0
2 years ago
Read 2 more answers
Can someone help me please
Anarel [89]

Answer:

Step-by-step explanation:

I made a table with a pretend number of years of teaching by picking a somewhat random number to start

"Clark has less seniority than Cornwall but more than Prendergast:"  I picked 3 for Clark 4 for Cornwall, and 2 for Prendergast, to start.

"Prendergast has more than Brown but less than Alexander:"  I see I'm running out of easy numbers here.  "Prendergast has more than Brown" means give Brown 1 year but this new teacher, Alexander needs a number between Clark and Prendergast.  To make room, I increased Clark and Cornwall by 1 and finished the remainder in the "Final Years" column:

<u>Teacher </u>     <u>Years</u>     <u> Final Years</u>

Clark         3               4

Cornwall         4               5

Prendergast                  2    

Brown                          1

Alexander                  3

The highest seniority teacher, Cornwall, is smart and refuses the job.  That leaves Clark, at number 2 seniority, to become the new supervisor.

6 0
2 years ago
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