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True [87]
3 years ago
10

What does 1/4 plus 2/5 equals? Simplify your answer, if possible. 5th grade math.

Mathematics
2 answers:
BigorU [14]3 years ago
5 0

Answer:

13/20

Step-by-step explanation:

Korvikt [17]3 years ago
5 0

Answer:

13/20

Step-by-step explanation:

1/4+2/5

1x5/4×5+2×4/5×4

5/20+8/20

5+8/20

13/20

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Maggie’s brother is 3 years younger than four times her age the sum of their ages is 27
adelina 88 [10]

well i think maggie would be 6

Step-by-step explanation:

6•3=18

18-4=14

14+6=20

5 0
3 years ago
Read 2 more answers
Please help! I will appreciate it
slava [35]

Answer:

yes. because the price is 3 times the number of pens

Step-by-step explanation:

2*3=6

4*3=12

5*3=15

8*3=24

6 0
3 years ago
Read 2 more answers
If (ax+2)(bx+7)=15x2+cx+14 for all values of x, and a+b=8, what are the 2 possible values fo c
dolphi86 [110]

Given:

(ax+2)(bx+7)=15x^2+cx+14

And

a+b=8

Required:

To find the two possible values of c.

Explanation:

Consider

\begin{gathered} (ax+2)(bx+7)=15x^2+cx+14 \\ abx^2+7ax+2bx+14=15x^2+cx+14 \end{gathered}

So

\begin{gathered} ab=15-----(1) \\ 7a+2b=c \end{gathered}

And also given

a+b=8---(2)

Now from (1) and (2), we get

\begin{gathered} a+\frac{15}{a}=8 \\  \\ a^2+15=8a \\  \\ a^2-8a+15=0 \end{gathered}a=3,5

Now put a in (1) we get

\begin{gathered} (3)b=15 \\ b=\frac{15}{3} \\ b=5 \\ OR \\ b=\frac{15}{5} \\ b=3 \end{gathered}

We can interpret that either of a or b are equal to 3 or 5.

When a=3 and b=5, we have

\begin{gathered} c=7(3)+2(5) \\ =21+10 \\ =31 \end{gathered}

When a=5 and b=3, we have

\begin{gathered} c=7(5)+2(3) \\ =35+6 \\ =41 \end{gathered}

Final Answer:

The option D is correct.

31 and 41

8 0
1 year ago
Help me find the answer
RUDIKE [14]

X= 14

2(X+4) = 2x+8
3x-6 = 2x+8
-6=2x-3x+8
-14 = -1x
X=14
6 0
3 years ago
Read 2 more answers
Look at the picture<br>and if you answer this thank you.
Reika [66]
The table of the tolls for Henderson is the direct variation since the cost is proportional to the miles traveled.
8 0
3 years ago
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