1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Helen [10]
3 years ago
12

Choose the number sentence that illustrates the distributive property of multiplication over additional

Mathematics
1 answer:
Irina18 [472]3 years ago
8 0

Answer: A

Step-by-step explanation:

It distributed into 5x 4 and 5 x 9. Lemme get brainliest

You might be interested in
I need the answers for 2 and 3
Korolek [52]
2- x= -2 y= -1 so the slope is -1/-2
3- x= 2 y= 3 so the slope is 1 1/2
i’m not sure if this is right but i’m learning this as well
5 0
3 years ago
A pharmacist has an 18% alcohol solution and a 40% alcohol solution. How much of each should he mix together to make 10 liters o
ladessa [460]
X = amount of the 18% solution

y = amount of the 40% solution

we know the 18% solution has only 18% of alcohol, the rest is maybe water or something, now, how many liters is 18%?  well, 18% of anything is just (18/100) * anything, so, 18% of x is just (18/100) *x or 0.18x, and that's how many liters are there.

likewise, how many liters are there in the 40% solution?  well, (40/100) * y, or 0.4y, that many.

we know the mixture has to yield 10 liters at 20% alcohol, how many liters of only alcohol is that?  well, (20/100) * 10, or 2 liters.

\bf \begin{array}{lccclll}
&\stackrel{liters}{amount}&\stackrel{alcohol~\%}{quantity}&\stackrel{liters}{alcohol}\\
&------&------&------\\
\textit{18\% solution}&x&0.18&0.18x\\
\textit{40\% solution}&y&0.40&0.4y\\
------&------&------&------\\
mixture&10&0.20&2
\end{array}

\bf \begin{cases}
x+y=10\implies \boxed{y}=10-x\\
0.18x+0.4y=2\\
----------\\
0.18x+0.4\left( \boxed{10-x} \right)=2
\end{cases}
\\\\\\
0.18x-0.4x+4=2\implies -0.22x=-2
\\\\\\
x=\cfrac{-2}{-0.22}\implies x=\cfrac{100}{11}\implies x=9\frac{1}{11}

how much of the 40% solution?  well y = 10 - x
3 0
3 years ago
HELP ME PLEASEEEEEEEEEE
Licemer1 [7]

Answer:

The area is 35

The perimeter is 24

Step-by-step explanation:

You can count the individual units of the length and the width of the rectangle.

The width is 5, the length is 7

The area is 5*7=35

The perimeter is 5+5+7+7=24

6 0
3 years ago
Read 2 more answers
Find the missing length
pshichka [43]

Answer:

9 yd

Step-by-step explanation:

15 yd - 6 yd = 9 yd

Please mark my answer as brainiest

7 0
3 years ago
Read 2 more answers
if the 300 inspected light bulbs represent 20% of an hour's total production of light bulbs, how many light bulbs are produced i
KIM [24]
Hi there! 
So to get this we just need to multiply 300 by 5 because it is 1/5 of the hour work. 300 x 5 = 1500 light bulbs. Hope this helps!


6 0
3 years ago
Other questions:
  • Help me with this and I'll mark you as Brain
    14·2 answers
  • How do you make $2.161616 as a fraction and a mixed number
    13·1 answer
  • The system of equations shown is solved using the linear combination method
    5·1 answer
  • there are a hundred and 50 monkeys 23 bears and 123 snakes living in the forest 20 monkeys were captured by the owners of the zo
    9·2 answers
  • ANSWER AND SHOW WORK
    7·1 answer
  • Write the place value as the denominator and write 7 as the numerator.
    9·1 answer
  • a baby weights 7 pounds at birth. the table shows the birth weight after each month of life, up to six months​
    5·1 answer
  • 25 students in class A did a science exam.
    11·1 answer
  • Please help , i will brainliest the correct answer :>​
    14·1 answer
  • 4x – 8(2 - x) when x = 1/4?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!