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melamori03 [73]
3 years ago
9

WHOEVER ANSWERS FIRST GETS BRAINLIEST AND I NEED AN EXPLANATION PLZ

Mathematics
2 answers:
Wewaii [24]3 years ago
8 0
1:you add the numbers 2:you have to the distribute property
trapecia [35]3 years ago
5 0

Answer:

Q7: -4 ; Q8: 2.6x + 8

Step-by-step explanation:

For the first one, since they are like terms, you can just normally subtract:

3x - 7x = -4x

Its a negative since 3 - 7 = -4 not positive 4.

You did question 8 correctly.

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Does 3 (x-1) = 2x + 9 have one solution, no solution, or infinite solutions?
Allushta [10]

Answer:

one solution

x = 12

Step-by-step explanation:

3 (x-1) = 2x + 9

3x - 3 = 2x + 9

subtract 2x from each side of the equation:

x - 3 = 9

add 3 to each side:

x = 12

3 0
3 years ago
Read 2 more answers
Jeremy is taking a photography class, but he doesn't own a camera. The class organizers will rent him a camera for $6 per day. J
Mazyrski [523]
Solving the given inequality for d, we get...

6d + 15 < 50
6d + 15-15 < 50-15 <<-- subtract 15 from both sides
6d < 35
6d/6 < 35/6 <<--- divide both sides by 6
d < 5.83

Which means that d can be any of the values in this set: {0, 1, 2, 3, 4, 5}

The smallest d can be is 0. In this scenario, Jeremy pays the $15 registration but doesn't rent the camera at all
The largest d can be is 5. In this scenario, Jeremy rents the camera for 5 days
Any larger value of d is not allowed as it would make the total cost go over $50
Notice how I'm rounding down regardless how close 5.83 is to 6

8 0
3 years ago
Read 2 more answers
Solve for in the diagram below.
ch4aika [34]
X is 35. 180=75+3x. 180-75/3=35
8 0
3 years ago
Quadrilateral ABCD is inscribed in the circle. Which sentence is true?
astra-53 [7]

Answer:

A) A and B are supplementary

Step-by-step explanation:

we know that

For any inscribed  quadrilateral in the circle , opposite angles will be supplementary

so

In this problem

Angle A and Angle B are supplementary angles

m\angle A+m\angle C=180^o

Angle B and Angle D are supplementary angles

m\angle B+m\angle D=180^o

therefore

<u><em>The sentences that are true </em></u>

A) A and B are supplementary

3 0
3 years ago
What is the distance between the points (2, 4) and (7, 16)?<br><br> 13<br> 15.4<br> 16<br> 24
Veronika [31]
If you do the distance formula you get 13 as the answer.
3 0
3 years ago
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