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3 years ago

Can someone help me with Questions 11 and 12v??

Mathematics

2 answers:

Anon25 [30]3 years ago

7 0

11 is H and 12 is A Hope this helps

faltersainse [42]3 years ago

7 0

11) you substitute the number of hours, h, in the equation they gave you to get the cost, c, she the painter makes

C=15h+245
C= 15(30.25)+245
C= 453.75+245
C= 698.75

12) p=45h
I got this answer because she earns 45 dollars an hour and this determines how much she gets paid depending on how many hours she works.

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1 point

V125BC [204]

Answer:

10. answer= 3

Q11 answer = -3

Step-by-step explanation:

Q10.

-3x+9-x+9=3x-3

or, -4x+18=3x-3

or, 3x+4x=18+3

or, 7x=21

or, x=3 answer

Q11.

1.8-3.7x= -4.2x+0.3

or, 4.2x-3.7x=0.3-1.8

or, 0.5x= -1.5

or, x=-3 answer

5 0

3 years ago

A group of 50 mothers were asked how many children they have. the

igor_vitrenko [27]

Answer:

4/25

Step-by-step explanation:

total no of children-15

total no of mothers-50

probability that a mother has i child

1/50

=8/50

=4/25

6 0

2 years ago

Read 2 more answers

Cuánto es 729 entre 38

riadik2000 [5.3K]

Answer: 19.1842

Step-by-step explanation:

8 0

3 years ago

Please help me it would mean a lot !!!!!!!!!!!!!!

Phantasy [73]

Answer:

Step-by-step explanation:

Given

f(x) = 4x + 7

f(a + h) = 4(a + h) + h

= 4a + 4h +h

= 4a + 5h

f(a) = 4a + 7

now by the question

$\frac{f(a+h) - f(a)}{h}\\=\frac{4a + 5h - 4a + 7}{h}\\=\frac{ 5h + 7}{h} \\= \frac{5h}{h} + \frac{7}{h} \\= 5 +\frac{7}{h}$

hope it helps :)

6 0

3 years ago

How do you do question 22

Alborosie

Answer:

∠YXZ = 58°

Step-by-step explanation:

Use the angle sum theorem and the given relations.

∠WXY +∠WXV = ∠YXV

∠WXY +(11° +3∠WXY) = 139°

4∠WXY = 128° . . . . . subtract 11°

∠WXY = 32° . . . . . . . divide by 4

Similarly, ...

∠WXY +∠YXZ = 90°

∠YXZ = 90° -∠WXY = 90° -32°

∠YXZ = 58°

6 0

3 years ago