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MakcuM [25]
3 years ago
9

How do I find the measure of these two supplementary angles using algebra?

Mathematics
1 answer:
nikdorinn [45]3 years ago
7 0

Answer:

70 and 110

Step-by-step explanation:

The two angles add to 180 degrees since they form a straight line

2x+10 +3x+20 =180

5x+30 = 180

Subtract 30 from each side

5x+30-30 =180-30

5x = 150

Divide by 5

5x/5 =180/5

x = 30

The left angle is 2x+10 = 2*30+10 = 60+10 =70

The right angle is 3x+20 = 3*30 +20 = 90+20 = 110

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How many millimeters are in 9.4 centimeters
Wittaler [7]

Answer:

There are <u>94 millimeters</u> in 9.4 centimeters.

Step-by-step explanation:

Given:

9.4 centimeters.

Now, to find the millimeters in 9.4 centimeters.

1 centimeter = 10 millimeter.

So, <em>9.4 centimeters is multiplied by 10 to get the result in millimeters.</em>

9.4\times 10\ millimeters

=94\ millimeters.

Therefore, there are 94 millimeters in 9.4 centimeters.

4 0
4 years ago
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Vlad1618 [11]

Answer:

D is the answer



7 0
3 years ago
Lexi made 14 sandwiches for a group picnic. The number of ham sandwiches she made was 4 less than the twice the number of turkey
shutvik [7]

x = # of ham sandwiches

14-x = # of turkey sandwiches ( as Lexi made 14 sandwiches)


as the question said that the number of ha sandwiches are 4 less than twice number of turkey sandwiches,

x = 2 * (14-x) - 4 = 24 - 2x

3x=24

x = 8


the number of ham sandwiches is 8, and the number of turkey sandwiches is 14-8=6

6 0
3 years ago
Joyce rented a booth at a carnival at a cost of $95 to sell handmade beaded necklaces. The cost of making and packaging each bea
xz_007 [3.2K]

Answer:

To make a profit of at least $500 she must sell at least 12 necklaces

Step-by-step explanation:

Joyce rented a booth at a carnival at a cost of $95 to sell handmade beaded necklaces. The cost of making and packaging each beaded necklace was $15. If Joyce sells the beaded necklaces at $35 each then we have to find beaded necklaces she sell to make a profit of at least $500.

The costs side of the equation, we have:

Let no. of necklaces that she sell are x

∴ The cost of making and packaging x beaded necklace is $15x

Total Cost = 95+15x

Now, Joyce sells the beaded necklaces at $35 each. Therefore, selling price will be $35x

To make a profit of at least $500 the equation can be written as

95+15x+500\leq35x

595\leq50x

⇒ x\geq11.9=12

Hence,  to make a profit of at least $500 she must sell at least 12 necklaces



7 0
4 years ago
Read 2 more answers
Select all the right triangles, given the length of the sides
Dahasolnce [82]

Answer:

B, E

Step-by-step explanation:

Needs a 3:4:5 ratio, or, if it is an isosceles triangle, then n:n:nsqrt(3)

3 0
2 years ago
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