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dybincka [34]
3 years ago
5

What is th answer for number 15?

Mathematics
1 answer:
kakasveta [241]3 years ago
4 0

Answer:

a

Step-by-step explanation:

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You have 60 waffles in all with a serving size of 2 waffles, there are 4 people, how many days will the waffles last. Show equat
Alja [10]
30÷2 =60
15 days 4×7=
5 0
3 years ago
Pleaseee help me solve the function
schepotkina [342]

Answer:

f(x) =  \frac{3 {(2)}^{2} - 2 }{2(2) + 3}  =  \frac{12 - 2}{7}  =  \frac{10}{7}

3 0
3 years ago
1. find the sum of the measures of exterior angles, one at each vertex, of an octagon.
love history [14]
For #1, C. 1080, For #2, B. 7, For #10, I think its because of the reflexive property (honestly, Google it just to be safe) , And for #11, A Rhombus, Having trouble remembering why but I know its not a rectangle or square.

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3 years ago
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Find the value of x such that 365 based seven + 43 based x = 217 based 10.
Pepsi [2]

We need to find the base x in the following equation:

365_7+43_x=217_{10}

First, lets convert 365 from base 7 to base 10. This is given by

365_7=3\times7^2+6\times7^1+5\times7^0

where the upperindex denotes the position of eah number. This gives

\begin{gathered} 365_7=3\times49+6\times7+5\times1 \\ 365_7=147+42+5 \\ 365_7=194_{10} \end{gathered}

that is, 365 based 7 is equal to 194 bases 10.

Now, lets do the same for 43 based x. Lets convert 43 based x to base 10:

43_x=4\times x^1+3\times x^0

where again, the superindex 0 and 1 denote the position 0 and 1 in the number 43. This gives

43_x=(4x+3)_{10}

Now, we have all number in base 10. Then, our first equation can be written in base 10 as

194_{10}+(4x+3)_{10}=217_{10}

For simplicity, we can omit the 10 and get

194+4x+3=217

so, we can solve this equation for x. By combining similar terms. we have

197+4x=217

and by moving 197 to the right hand side, we obtain

\begin{gathered} 4x=217-197 \\ 4x=20 \end{gathered}

Finally, we get

\begin{gathered} x=\frac{20}{4} \\ x=5 \end{gathered}

Therefore, the solution is x=5

8 0
1 year ago
In 4 years, sravani will be 3 times as old as Makayla is currently. three years ago, sravani was 4 times as old as Makayla was t
77julia77 [94]
X - Sravani
y - Makayala

x+4=3y\\
x-3=4(y-3)\\\\
x=3y-4\\
x=4y-12+3\\\\
x=3y-4\\
x=4y-9\\\\
3y-4=4y-9\\
4y-3y=-4+9\\
y=5\\\\
x=3\cdot5-4\\
x=15-4\\
x=11

Sravani - 11
Makayla - 5
3 0
3 years ago
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