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kari74 [83]
3 years ago
13

If 3t=5t-8 evaluate -4t+5

Mathematics
1 answer:
Sergio [31]3 years ago
6 0

3t = 5t - 8

-2t = -8

t = 4

Now put that into -4t + 5:

-4t + 5

-4(4) + 5

-16 + 5

-11

⭐ Please consider brainliest! ⭐

✉️ If any further questions, inbox me! ✉️

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7. Which of the following has a certain
Sliva [168]

Answer:

C.

Step-by-step explanation:

February has 28 days and on leap years 29. so there is an 11/12 chance that a month will have 29 days. a coin is 50/50. rain is 7/10. and a is irrational.

6 0
3 years ago
An SUV costs $27,070 and costs an average of $0.18 per mile to maintain. A hybrid model of the SUV costs $32,880 and costs an av
Leno4ka [110]

Answer:

116,200 km

Step-by-step explanation:

Here we have 2 cars, each one with it's corresponding costs. Let's write each cost as functions. The SUV costs $27,070 plus $0.018 per mile. Let x be the miles and SUV (x) the SUV's cost:

SUV(x)=27070+0.18x

We can do the same for the hybrid with a cost function H(x):

H(x)=32880+0.13x

We now need the cost of the SUV to be greater than the hybrid. This is SUV (x)> H(x):

27070+0.18x > 32880+0.13x

Let's subtract 27070 in each side:

0.18 x > 32880 - 27070 + 0.13x

Now let's subtract 0.13x in both sides:

0.05x > 5810

Divide both by 0.05:

x > 5810/0.05

x > 116,200

So, after 116,200km the SUV will turn to be more expensive.

7 0
3 years ago
I'm so confused, our teacher assigned this but dident teach us how to do it
kari74 [83]
Edge is where the top meets the bottom of the shape. Hope this helps
8 0
3 years ago
What is the quotient of 136 divided by 21
Marat540 [252]

Answer:

136 divided by 21 is 6.47 the quotient is the awnser you get from dividing 2 numbers

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A new Community Wellness Complex is being built in Oak Valley. The perimeter of the rectangular playing field is 284 yards. The
SashulF [63]

To solve this problem, we need to remember that the perimeter of a rectangle can be found using the formula: P = 2 (l + w) where the variable l represents the length of the rectangle and the variable w represents the width of the rectangle.

We know that the length of the field is 5 yards less than double the width, or 2w-5.  We can substitute this value into our formula for the variable l (length).

P = 2 (w + 2w - 5)

Now, we can substitute the value for the perimeter (284) into the equation for the variable p.

284 = 2 (w + 2w - 5)

Next, we should simplify what is inside the parentheses by adding together the like terms.

284 = 2(3w - 5)

Next, we should divide both sides of the equation by 2.

142 = 3w - 5

After that, we can add 5 to both sides of the equation.

147 = 3w

Finally, we should divide both sides of the equation by 3 to get the variable w alone on the right side of the equation.

w = 49

Therefore, the width of the rectangle is 49.  We know that the length is 5 yards less than double the width, or 2w - 5.  To solve for the length, we should substitute in our value for the width and simplify.

l = 2w - 5

l = 2(49) - 5

l = 98 - 5

l = 93

Therefore, the width of the rectangle is 49 yards and the length of the rectangle is 93  yards.

Hope this helps!

7 0
3 years ago
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