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3 years ago

I need a word problem with this equation asap y=4.2x

Mathematics

1 answer:

Juli2301 [7.4K]3 years ago

7 0

Answer:

Jimmy gets $4.2 every hour he spends doing chores or homework, if jimmy made $42 last week, how many hours did he spend doing chores or homework that week?

x = hours

y = his earnings

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Express the following linear equations in the form ax+by+c= 0 and indicate the values of a, b and c in each case: (1) y = x/5

EleoNora [17]

Answer:

Did the question get cut off?

a = -(1/5)

b = 1

c = 0

Step-by-step explanation:

y = x/5 may be rewritten as y = (1/5)x

y = (1/5)x

y - (1/5)x = 0

- (1/5)x + y + 0 = 0

ax + by + c = 0

a = -(1/5)

b = 1

c = 0

8 0

2 years ago

Find the value of x x=?

jok3333 [9.3K]

Answer:

e. dmkdjdjdjdisiwuwuwuw

7 0

3 years ago

Maysoun drove 1116 kilometers in 12 hours. At the same rate, how long would it take her to drive 651 kilometers?

Lilit [14]

Answer:

7 hours

Step-by-step explanation:

12hrs=1116kms

1hr=1116÷12

1hr=93kms

Xhrs=651kms

Xhrs=(651÷93) ×1

=7×1

=7hrs

7 0

3 years ago

Help rn please!! Urgent

Aleks04 [339]

Answer:

x² + 2x - 15 = 0

Step-by-step explanation:

- 5 and 3 are zeros of quadratic function.

(x + 5)(x - 3) = 0

x² + 2x - 15 = 0

8 0

3 years ago

If sin theta = -1/2 and lies in the third quadrant, what is the cos?

never [62]

Sin angle that equals the 1/2 value is the 30 degree on the 1st Quadrant.

The angle of 30 degree on the 3rd Quadrant is equivalent to (formula and circle in the 1st photo) 180 + 30 = 210°.

So theta = 210° (3rd Quadrant) = 30° (1st Quadrant).

$cos \: 30\degree = \sqrt{3} \div 2$

Now just transfer the cos 30° to the 3rd Quadrant and the signal will be negative (as shown in the 2nd photo attached).

$cos \: 210 \degree = - \sqrt{3} \div 2$

5 0

4 years ago