3 years ago

Write an equation in y = mx + b given the slope of 2 and goes through the point (4, 9).

Mathematics

2 answers:

-BARSIC- [3]3 years ago

7 0

Answer:

slope=2 ie m=2

y=2x+b

and to solve b, we put in 4 and 9 into the equation

9=2*4+b, so b=9-8=1

hence y=2x+1

Step-by-step explanation:

Sedbober [7]3 years ago

7 0

Answer:

Student your question is not too clear, please complete the question

You might be interested in

Can someone help please

diamong [38]

Answer:r

enor

Step-bay-step explanation:

4 0

3 years ago

Read 2 more answers

Have students write the answer to the essential question and draw examples to explain their answer.

hram777 [196]

What is the essential question? We need more details please :)

7 0

3 years ago

Read 2 more answers

Please help and explain!!!!!

FinnZ [79.3K]

Let $x$ be the amount of the 30% alloy and $y$ the amount of the 60% alloy the metalworker will use. However much is used, the final alloy will have a mass of

$x+y=100$

kilograms. For each kg of the 30% alloy used, 0.3 kg is copper; similary, each kg of the 60% alloy contributes 0.6 kg, so that

$0.3x+0.6y=0.54(x+y)=54$

Now,

$x+y=100\implies y=100-x$

$\implies0.3x+0.6(100-x)=54$

$\implies60-0.3x=54$

$\implies0.3x=6$

$\implies x=20$

$\implies y=100-20=80$

6 0

4 years ago

There are 32 vanilla cupcakes and 40 chocolate cupcakes at a bakery. All of the cupcakes must be placed in boxes with the same n

mr_godi [17]

Answer:

5 to 4

Step-by-step explanation:

when it's asking for a ratio it's basically division

chocolate/vanilla = 40/32 = 5/4

5/4 is the same as 5:4 or 5 to 4

7 0

2 years ago

If the temperature on the ground is 70 F then

harina [27]

Answer: try to (x) each one by the answer to -0.0035 +70

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers