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kvv77 [185]
1 year ago
6

What is the value of x in the equation 8x – 2y = 48, when y = 4?

Mathematics
1 answer:
luda_lava [24]1 year ago
8 0

Answer:

7

Step-by-step explanation:

8x-2y=48, replace y with 4, 8x-2(4)=48, multiply, 8x-8=48, add 8 to both sides to remove the -8, 8x=56 and finally divide by 8 to remove 8 from x, x=7.

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Four different prime numbers, each less than 20, are multiplied together. What is greatest possible result?
valentinak56 [21]

Answer:

46,189

Step-by-step explanation:

The prime numbers that are less than 20 are :

1,2,3,5,7,11,13,17,19

to get the greatest value, we multiply the four numbers with the largest values i.e

11 x 13 x 17 x 19 = 46,189

8 0
2 years ago
Solve for m:<br> -3(1 – 5m) = — 38 + 8m
Solnce55 [7]

Answer:

m = - 5

Step-by-step Explanation:

-3(1-5m)=-38+8m \\  \\  - 3 + 15m =  - 38 + 8m \\  \\ 15m - 8m = 3 - 38 \\  \\ 7m =  - 35 \\  \\ m =  \frac{ - 35}{7}  \\  \\  \huge \purple{ \boxed{m =  - 5}}

3 0
1 year ago
Read 2 more answers
Sean's mom asks him how long his homework will take. He tells her that he needs to read for 25 minutes and also do some math pro
quester [9]

Answer: h=25+m

Twenty five minutes of reading plus the math.

Complete the table?  There is no table shown, but just add 25 to the values of m given to get h values, or take away 25 for given hs to get ms.

3 0
2 years ago
What is the midpoint of the x-intercepts of f(x) = (x – 4)(x + 4)?
stellarik [79]
<span>f(x) = (x – 4)(x + 4) = x^2 - 4.  This is the equation of a parabola with vertex at (0,-4) and x-intercepts of (-2,0) and (2,0).  The midpoint of the line segment connecting these 2 points is (0,0).  Draw this situation and see for yourself!

</span>
9 0
2 years ago
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To prepare for a triathlon, Amanda starts from position A and rides her bike along a straight road for 12 miles to reach positio
Sergio [31]

Answer:


Step-by-step explanation:

Let's draw the given information first for better understanding . Check the image attached.

We can use cosine rule to find the angles .

for angle A ,

Cos A =\frac{b^2+c^2-a^2}{2bc}

Cos A =\frac{20^2+12^2-15^2}{2*20*12}

Cos A =\frac{319}{480}

m∠A = 48.35 degrees

Similarly for angle B

Cos B =\frac{a^2+c^2-b^2}{2bc}

Cos B =\frac{15^2+12^2-20^2}{2*15*12}

Cos B =\frac{-31}{360}

m∠B = 94.94 degrees

Now use A+B+C=180 degrees

48.35+94.94+C=180

C=180-48.35-94.94

m∠C = 36.71 degrees

3 0
2 years ago
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