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3 years ago

I need help solving the last 2 questions please

Mathematics

2 answers:

solniwko [45]3 years ago

6 0

7.5 pages per hour which means she make $20 an hour also.

On average per page she receives about $3.34

Alborosie3 years ago

4 0

A. 7.5 pages per hour B. $2.66 for one page

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Y=-3x+12 Y=-3

Alenkasestr [34]

Well first you substitute -3 for y and then subtract 12 from both sides of the equation and it should look like -15=-3x. Then divide 3 on both sides and you should end up getting 5=x.

4 0

3 years ago

The football referee calls a penalty of 5 yards against a team in addition to a loss 3 yards. If another referee calls an additi

nignag [31]

Answer: 18 yards.

Step-by-step explanation: 5 + 3 + 10 = 18 Brainliest please?

8 0

3 years ago

A motorist drives for m hours at 120km/hr and n hours at 18km/hr. Altogether Somina drives 78km in 5 hours. Find m and n.

nikdorinn [45]

Answer:

(0.118, 4.882)

Step-by-step explanation:

If a motorist drives for m hours at 120km/hr, then the Distance of the motorist is expressed as;

Distance = Speed * time

da = 120m

If he drives n hours at 18km/hr;

db = 18 * n

db = 18n

Speed of the motorist altogether is expressed as;

Speed =78km/5hrs

Speed = 15.6km/hr

SInce the total distnce is 78km

120m + 18n = 78 ....1 ..... * 1

If total time is 5hrs

m + n = 5....2 ...*18

Solve simultaneously

120m + 18n = 78

18m + 18n = 90

Subtract

120m - 18m = 78-90

102m = -12

m = 0.118 hrs

m =

Since m + n = 5

n = 5 - m

= 5 - 12/102

n = 4.882

Hence (m,n) is (0.118, 4.882)

3 0

3 years ago

What is the solution to the equation 2k-10/-7 = 8?

lubasha [3.4K]

K= 23/7 simplified to 3 2/7

4 0

4 years ago

!!!PLEASE HELP ASAP!!! <br> I WILL GIVE MORR POINTS IF NEEDED AND MARK BRAINLIEST

Firlakuza [10]

The first one shows 1 cm and 7 mm, we need to convert 7 mm to cm
1 cm + 7 mm
= 1 cm + $\frac{7}{10}$ cm
= 1 cm + 0.7 cm
= 1.7 cm
The first one is 1.7 cm

The second one shows 11 inches and 5/16 inches. Between number 11 and 12, there are 16 strips and the pointer lies on fifth strip, thus it show 5/16 inches. The second one is 11 $\frac{5}{16}$ inches.

The third one shows 13 cm and 8 mm. We need to convert mm into cm.
13 cm + 8 mm
= 13 cm + 0.8 cm
= 13.8 cm
The third one is 13.8 mm

7 0

3 years ago