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umka2103 [35]
2 years ago
12

How many degrees ina right angle

Mathematics
1 answer:
lara31 [8.8K]2 years ago
7 0
Having a look at a protractor, it shows 90. That is 1/2 pi RAD.
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Kersha has two jobs. During the day she works as an office clerk, and in the evening she works as a cashier. Her office job pays
VLD [36.1K]
Let x =  hours worked as a clerk ($12 per hour).
Let y = hours worked as a cashier ($8.25 per hour).

She worked 55 hours, therefore
x + y = 55             (1)

She earned $585, therefore
12x + 8.25y = 585        (2)

From (1), obtain
y = 55 - x           (3)

Substitute (3) into (2).
12x + 8.25(55 - x) = 585
12x + 453.75 - 8.25x = 585
3.75x = 131.25
x = 35
y = 55 - x = 55 - 35 = 20

Answer: a)  Office clerk: 35 hours; cashier: 20 hours.

7 0
3 years ago
Solve for x.<br> -7&gt;13-5x
Black_prince [1.1K]

Answer: x>4

The answer is x>4

5 0
3 years ago
Read 2 more answers
A skydiver is falling out about 176 ft./s. How many feet per minute is he falling??
Lady bird [3.3K]

How many seconds are in a minute?

We need to multipy the number of ft falling per second by 60 to get fpm.

60 x 176 = 10,560 fpm

5 0
3 years ago
Naomi has earned $54 mowing lawns
lyudmila [28]

Answer:

8 dollar/hr

Step-by-step explanation:

she worked 2 1/2 hrs yesterday and 4 1/4 hrs today

2 1/2 + 4/14

2+4 is 6

and 1/2+1/4 multiply 2 to both numerator and denominator of  1/2 so that the denominator of both fraction is like

it will now become 2/4+1/4 which equals 3/4

This means that she worked total of 6 3/4 hour in all yesterday and today

she is paid 54 dollar

we will need to divide 6 3/4  or written as 6.75 by 54 to find how much she earns per hour

and that would be 8

so she earns 8 dollar per hour.

5 0
3 years ago
I dont know how to find a .
mina [271]
To find a,construct a line that parallel to AB and DE cutting c, which you could refer to the photo((sorry for my terrible diagram ^^;;

from the photo,we can see that
a= <BCG + <GCE

<BCG=44° (alt.<, AB//FG)
<GCE=20° (alt<, FG//DE)

thus,a= 44°+20° =64°

hope it helps!

4 0
3 years ago
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