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CaHeK987 [17]
3 years ago
14

Lisa's age is 4 years older than three times Sammy's age. Lisa is 28 years old. Let s represent Sammy's age. Which equation can

be used to solve for Sammy's age?
Mathematics
1 answer:
Ainat [17]3 years ago
3 1

Answer:

24

Step-by-step explanation:

let Sammy's age be x and Lisa y

since Lisa is 4years older than Sammy

y=x+4

28-4=y

y=24

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ANTONII [103]

Answer:

x=66

Step-by-step explanation:

Every triangle is equal to 180 degree angles so if you do 83+31, then that is equal to 114, which is when you do 180-114 and that would be 66. So your answer would be x=66

6 0
3 years ago
Four times the sum of a number and -3 is 7 more than quadruple the number. Write and solve the equation to find the number.
GrogVix [38]
4 [x+(-3)] = 4x + 7

distribute 4

4x - 12 = 4x + 7

subtract 4x

-12 = 7

no solution
3 0
3 years ago
Two polygons are similar. What is the correct similarity statement?<br>​
joja [24]

Answer:

option 3

Step-by-step explanation:

Given the 2 triangles are similar then corresponding angles are congruent.

Calculate the missing angles in both triangles.

∠ A = 180° - (90 + 35)° = 180° - 125° = 55°

∠ L = 180° - (90 + 55)° = 180° - 145° = 35°

Consider ACB ~ MNL , comparing corresponding angles

∠ A= 55° and ∠ M = 90° ← not congruent

Consider ABC ~ LMN, comparing corresponding angles

∠ A = 55° and ∠ L = 35° ← not congruent

Consider CBA ~ LMN , comparing corresponding angles

∠ C = 35° and ∠ L = 35° ← congruent

∠ B = 90° and ∠ M = 90° ← congruent

∠ A = 55° and ∠ N = 55° ← congruent

The correct similarity statement is

CBA ~ LMN

6 0
3 years ago
Read 2 more answers
David's phone bill each month is $30. He is also charged $0.10 per GB of data he uses. If his phone bill in July was $42, how ma
Aleonysh [2.5K]

Answer:

120

Step-by-step explanation:

Okay so the equation would be like this
30 + 0.10g = P

g = GB of data used

P = Total Price

Let's work this out now!

So. If his total bill was $42 lets subtract the 30 that comes out every month automatically, now we are just left with 12, if each GB costs 0.10 then all you would do to find out how many GB he used is do 12/0.10 (which is really just 12*10) which will get you 120

Meaning that he used 120 GB

(That's a lot!)

7 0
2 years ago
Read 2 more answers
Please help with this question p
Gemiola [76]

Answer:

160 cm²

Step-by-step explanation:

V = 1/3 * 24 * 20 = 160 cm²

4 0
2 years ago
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