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Nostrana [21]
4 years ago
7

Simplify using the distributive property: 2a + 4(a+5) - 7

Mathematics
2 answers:
12345 [234]4 years ago
5 0

Answer: 6a + 13

Step-by-step explanation: here you go: 2a + 4*(a+5) - 7

first we simplify the brackets (distributive property, you multiply 4 "a" times plus 5 times): 2a + 4a + 20 - 7

then you add those that multiply the variable separately from those that don't: 6a + 13

likoan [24]4 years ago
4 0

Answer:

6a + 13

Step-by-step explanation:

Given

2a + 4(a + 5) - 7 ← distribute parenthesis

= 2a + 4a + 20 - 7 ← collect like terms

= 6a + 13

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A random survey was taken of 400 people in a city in the United States. The survey found that the three most common eye colors a
Nostrana [21]

Answer:

B 14/25(56.00%)

Step-by-step explanation:

167+57=224, which means 224/400(56.00%) people would have brown or hazel eyes. 224/400 is also equivilant to 14/25

5 0
3 years ago
Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y).3x + 2y = 2 -2x + y = 8
gregori [183]
-2x + y = 8
y = 2x + 8
now sub in 2x + 8 for y in the other equation
3x + 2y = 2
3x + 2(2x + 8) = 2...distribute the 2 thru the parenthesis
3x + 4x + 16 = 2
7x = 2 - 16
7x = - 14
x = -14/7
x = -2
now sub -2 in for x in either equation to find y
-2x + y = 8
-2(-2) + y = 8
4 + y = 8
y = 8 - 4
y = 4

solution is : (-2,4)
3 0
3 years ago
Solve the inequality. 7q – 5 ≤ 10q + 19
Ede4ka [16]
Hey there.

7q - 5 \leq 10q + 19
Get the variable to one side.
-5 \leq 3q + 19
Isolate the variable.
3q \geq 24
Solve for the variable.
q \geq 8 is your answer.

I hope this helps!
6 0
4 years ago
Read 2 more answers
2. Find the area. The figure is not drawn to scale.<br> 4 cm<br> 17 cm
BabaBlast [244]
area=base x height so i’m thinking it’s 4x17=68
7 0
3 years ago
Solve for this question please show ur work thank you no
mariarad [96]

Answer:

x1= 79, x2= -83

Step-by-step explanation:

seperate into 2 possible cases

x+2=81

x+2= -81

subtract 2 from both sides

x= 79

x= -83

3 0
3 years ago
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