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Elden [556K]
3 years ago
12

Dalia bought a few swirl marbles and divided it equally among four of her friends and her brother,Jake. While playing,Jake lost

two marbles and has only 7 marbles at present. Find how many marbles did Dalia buy in all.
Mathematics
1 answer:
Veronika [31]3 years ago
5 0

Answer:

45 marbles

Step-by-step explanation:

Using the information provided, we can form the equation x/5 - 2 = 7

Step 1: Add two on both sides of the equation x/5 - 2 = 7

Step 2: Multiply both sides of the equation by 5, to cancel out x. x/5=9

Step 3: Lastly, you get that x=45 marbles

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Which expression uses the commutative property to make it easier to evaluate
Basile [38]

Let's begin by listing out the given information:

The commutative property states that for addition, the order in which we add numbers does not change their sum & for multiplication, the order in which we multiply does not change their product.

Mathematically expressed as:

\begin{gathered} x+y+z=y+z+x \\ x\cdot y\cdot z=y\cdot z\cdot x \end{gathered}

Therefore, the commutative property of this is:

\begin{gathered} \frac{4}{3}\cdot\frac{1}{5}\cdot18=\frac{4}{3}\cdot18\cdot\frac{1}{5} \\ \Rightarrow\frac{4}{3}\cdot18\cdot\frac{1}{5} \\  \end{gathered}

Therefore, Option D is the correct answer

7 0
2 years ago
Convert the expression 9 1/2to radical form.
Diano4ka-milaya [45]

Answer:

Radical Form is 1/√9

Step-by-step explanation:

Also, the decimal version is 0.3 repeating

6 0
3 years ago
Read 2 more answers
WILL GIVE CROWN THING <br> HELP ASAP
TEA [102]

Answer:

The value of x will be:

  • x=-5

Step-by-step explanation:

Given the equation

4-2(x+7)=3(x+5)

Multiply (or distribute) each term in parenthesis on L.H.S by -2, and multiply (or distribute) each term in parenthesis on R.H.S by 3.

4-2x-14=3x+15

simplifying the equation by subtracting 14 from the L.H.S

-10-2x=3x+15

Subtracting 15 from both sides

-10-2x-15=3x+15-15

-25-2x=3x

combining the like terms

-25=3x+2x

-25=5x

dividing both sides of the equation by 5

\frac{-25}{5}\:=\:\frac{5x}{5}

-5=x

Therefore, the value of x will be:

  • x=-5
7 0
3 years ago
Solve the proportion for the variable 6/y= 9/33
NeX [460]

Answer: y=22

Step-by-step explanation:

1. Multiply by <em>y</em> both sides of the equation, as following:

\frac{6y}{y}=\frac{9y}{33}\\\\6=\frac{9y}{33}

2. Now you must multiply by 33 both sides of the equation, as following:

6*33=\frac{9y}{33}*33\\198=9y

3. Now you must divide both sides of the equation by 9. Therefore, you obtain:

\frac{198}{9}=\frac{9y}{9}\\y=22

3 0
3 years ago
Read 2 more answers
Points P. Q. and S are on a circle. The measure of arc PQ is 58°<br>What is the measure of arc PSQ?​
Lisa [10]

Answer:

<h2>The arc PSQ is 302°.</h2>

Step-by-step explanation:

We know that the total length of the circumference is 360°. In this case, that total is divide in two arcs PQ and PSQ, so

PQ+PSQ=360\°

Replacing given values, we have

PSQ=360-58=302\°

Therefore, the arc PSQ is 302°.

5 0
3 years ago
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