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3 years ago

7.

Mathematics

2 answers:

Xelga [282]3 years ago

6 0

Answer:

10x +17y=c (C is the total cost)

Westkost [7]3 years ago

5 0

Answer:

10x+17y = z

Step-by-step explanation:

You have to multiple 10 by the number of t shirts you have(x)

Then you have to multiply 17 by the number of long sleeve shirts you have (y)

You then have to add 10x and 17y to get your total cost(z)

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Dean Davids' home has a market value of $422.800. Davids lives in a county where the rate of assessment is 100 percent and the t

Greeley [361]

Answer:

12312 dolalrses wna doussy! oi uno si

Step-by-step explanation:

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3 years ago

Donna is running a track it takes her 10 minutes to run 6 laps if she keeps running at the same speed how long will it take her

kaheart [24]

To solve this problem we can make a proportion.
6 5
-- = ---
10 x

to solve this proportion we can cross multiply and divide.
5 times 10 is 50. divided by 6 is 8.3
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7 0

3 years ago

Read 2 more answers

Suppose you are determining whether the depth of groves cut into aluminum by a milling machine is equal to 1.7 mm. You cut 14 gr

Gemiola [76]

Answer:

For this case we want to check if the true mean for the depth of groves cut into aluminium by a machine is equal to 1.7 (null hypothesis) and the alternative hypothesis would be the complement different from 1.7. And the best system of hypothesis are:

Null hypothesis: $\mu =1.7$

Alternative hypothesis $\mu \neq 1.7[/tx]And the best system of hypothesis are:3. This two-sided test:
H0: μ = 1.7 mm
H1: μ ≠ 1.7 mmStep-by-step explanation:For this case we want to check if the true mean for the depth of groves cut into aluminium by a machine is equal to 1.7 (null hypothesis) and the alternative hypothesis would be the complement different from 1.7. And the best system of hypothesis are:Null hypothesis: [tex]\mu =1.7$

Alternative hypothesis [tex]\mu \neq 1.7[/tx]

And the best system of hypothesis are:

3. This two-sided test:

H0: μ = 1.7 mm

H1: μ ≠ 1.7 mm

4 0

3 years ago

Can someone help me asap!! am timed right now

Aneli [31]

Answer:

Step-by-step explanation:

Find the value of the left hand side (LHS)

LHS = 1/4 // 5/6

LHS = 1/4 * 6/5

LHS = 6/20

LHS = 3/10

Now what will make 3/10 on the right?

B: 1/4 * 6/5 = 6/20 = 3/10

a = 4

b = 6

c = 5

7 0

3 years ago

One number is -3 times the first number. The sum of the numbers is -4. What is the second number?

kobusy [5.1K]

Lets say that the first number is x and the second number is y.
from the question we know that:
y=-3x and x+y=-4
from there, you need to replace the y in the second equation with -3x since we know that is what y equals so we can have an equation with only one variable.
x+-3x+-4
Then you solve for x.
-2x=-4
x=2
then you find y with the fact that y=-3x
y=-6

6 0

3 years ago