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3 years ago

Selena is 2 years older than Maria, and Sofia is 3 years younger than Maria. If the sum

Mathematics

2 answers:

Margarita [4]3 years ago

5 0

Answer:

Hi! Maria is 15 years old, Selena - 17 and Sofía - 12

natita [175]3 years ago

5 0

Hi there! Maria is 15 years old, Selena is 17 years old and Sofia is 12 years old.

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Can you help me solve this?

marishachu [46]

Answer:

the answer is seven

Step-by-step explanation:

3 0

2 years ago

Solve for x: |2x+6| -4 = 20

Bingel [31]

|2x + 6| - 4 = 20

First, add 4 to both sides. / Your problem should look like: |2x + 6| = 20 + 4
Second, simplify 20 + 4 to 24. / Your problem should look like: |2x + 6| = 24
Third, break down the problem into these 2 equations. / 2x + 6 = 24 and -(2x + 6) = 24
Fourth, solve the 1st equation: 2x + 6 = 24
Subtract 6 from both sides. / Your problem should look like: 2x = 24 - 6
Simplify 24 - 6 to 18. / Your problem should look like: 2x = 18
Divide both sides by 2. / Your problem should look like: x = $\frac{18}{2}$
Simplify $\frac{18}{2}$ to 9 / Your problem should look like: x = 9
Fifth, solve the 2nd equation: -(2x + 6) = 24
Simplify brackets. / Your problem should look like: -2x - 6 = 24
Add 6 to both sides. / Your problem should look like: -2x = 24 + 6
Simplify 24 + 6 to 30. / Your problem should look like: -2x = 30
Divide both sides by -2. / Your problem should look like: x = $\frac{30}{-2}$
Simplify $\frac{30}{-2}$ to $- \frac{30}{2}$ / Your problem should look like: x = $-\frac{30}{2}$
Simplify $\frac{30}{2}$ to 15. / Your problem should look like: x = -15
Sixth, collect all of your solutions. / Your problem should look like: x = -15, 9

Answer: x = -15, 9 (C)

4 0

3 years ago

Choose the function table that matches the given rule Rule:output=input -2

kirill [66]

Answer:

option B

Step-by-step explanation:

Rule:output=input -2

LEts analyze the table

we use the input and apply the rule to get the output

LEts subtract 2 from input to get the output

Input Rule (input -2 ) Output

-3 -3-2 -5

-7 -7-2 -9

6 6-2 4

Option B matches with our table

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2 years ago

PLEASE HELP ASAP (MATH) WRITE IN STANDARD FORM!

sveticcg [70]

Answer:

3×10⁵

Step-by-step explanation:

Hi there !

$\frac{9.6*10^{7}}{3.2*10^{2}}=\\ \\=3*10^{7-2}\\ \\=3*10^{5}$

Good luck !

6 0

2 years ago

How does replacing f(x) with f(x) + k, k f(x), f(kx), and f(x + k) for specific values of k (both positive and negative) affect

ivann1987 [24]

F(x) + k - Moves the graph k units up.

k f(x) stretches the graph parallel to y-axis by a facor k

f (kx) stretches the graph by a factor 1/k parallel to x-axis

f(x + k) moves the graph 3 units to the left.

For k negative the first one moves it k units down

for second transform negative does same transfoormation but also reflects the graph in the x axis

For the third transform negative k :- same as above but also reflects in y axis

4th transform - negative k moves graph k units to the right

4 0

2 years ago