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3 years ago

Find the value of 9x+4y when x=4 and y=-3

Mathematics

1 answer:

jasenka [17]3 years ago

4 0

Answer:

you substitute x for 4 and so you multiply 9 x 4 which will give you 36 and then you have to add four times y so you substitute y for -3 and you add 36 - 12 which will give you 24

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Heather is a cashier and she can ring up 36 customers in 24 minutes. At this rate how many minutes does it take to ring up 6 cos

Jet001 [13]

Answer: 4

Step-by-step explanation:

Let's make a table.

So we know that for 24 minutes, Heather can ring up 36 customers. Now, to get 6 customers, you need to divide 36 by 6.

36 = 24

/ 6 /6

_______

6 = <u>4</u>

3 0

3 years ago

Read 2 more answers

Anyone know how to do this?!!

iren2701 [21]

Answer:

slope is -1/4

Step-by-step explanation:

$\frac{-4}{12}$ = $\frac{-1}{4}$

$\frac{-2}{8}$ = $\frac{-1}{4}$

and so on...

formula: $\frac{x}{y}$

hope this helps!!!

6 0

3 years ago

Which is bigger 3 yards is 10 feet

77julia77 [94]

1 yard = 3 feet.

3 yards = 3 * 3 = 9 feet

9 feet < 10 feet

Hope that helped =)

5 0

3 years ago

Read 2 more answers

On a blueprint, the scale indicates that 4 centimeters

makvit [3.9K]

Answer:

Length: 15 feet Width: 105 feet

Step-by-step explanation:

set up a proportion of x over 4 and x over 12 fill in the length or width that you do know. Then cross multiply and solve the simple equation you get: for example) 60 = 4x. Just divide both sides by 4 to get x by itself.

Hope this answered your question!

6 0

3 years ago

Find Missing Angle

Neporo4naja [7]

Answer:

75 degrees

Step-by-step explanation:

Use trigonometry

we are given opposite(27) and hypotenuse(28), so use sin

sin=opp/hyp

sin(x)=27/28

x=arcsin(27/28)

x=74.64111442

6 0

3 years ago