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ira [324]
3 years ago
6

(4plus2) - 7 times 2

Mathematics
1 answer:
mote1985 [20]3 years ago
7 0

Answer:

-8

Step-by-step explanation:

Brackets go first, (4+2)=6

Then multiplication, 7x2=14

Lastly, combine them: 6-14 = -8

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8 0
3 years ago
If you flip three fair coins, what is the probability that the first two flips will both be heads, and the third flip will be ei
Degger [83]

Answer:

1/4

Step-by-step explanation:

This is correct on khan academy!

6 0
3 years ago
Read 2 more answers
John was given the equation 4(2a + 3)= -3(a - 1) + 31 - 11. Some steps an their reasons have already been completed. State a pro
cestrela7 [59]

Answer:

- Disitributive property.

- Addition property of equality.

Step-by-step explanation:

The complete exercise is attached.

For this exercise you need to remember the following properties:

1. The Distributive property states that:

c(a+b)=ac+bc\\\\c(a-b)=ac-bc

2. The Addition property of equality states that:

If\ a=b\ then\ a+c=b+c

Then, given the equation:

4(2a + 3)= -3(a - 1) + 31 - 11a

You can identify that the first property John used was the Distributive property:

(4)(2a) + (4)(3)= (-3)(a) +(-3)(- 1) + 31 - 11a\\\\8a+12=-3a+3+31-11a

After combining like terms, you can identify that the next  property he applied was the Addition property of equality, adding 14a to both sides of the equation:

8a+12+(14)=-14a+34+(14)\\\\22a+12=34

8 0
3 years ago
Every day, the Clark Pet Store uses 1 1/2 bags of dog food to feed the dogs. How many days will 7 1/2 bags of dog food last?
Lunna [17]
Sheeeesh i think the it’s 1/2 .2 in a meter of 55 6.789
5 0
3 years ago
Barb is making a banner that is shaped like a trapezoid the height of the banner is 24 inches the top of the banner is it 14 inc
velikii [3]

Answer:

The length of the bottom side of the banner is 17 in.

Step-by-step explanation:

Given,

Area of the Banner = 372\ in^2

Height of the Banner = 24 in

Top side of the Banner = 14 in

We have to find the length of the bottom side of the banner.

Solution,

Let the length of the bottom side of the banner be 'x'.

Since the banner is in the shape of trapezoid.

So according to the formula of area of trapezoid, which is;

Area of trapezoid =\frac{1}{2}\times \textrm{sum of parallel sides}\times \textrm{distance between them}

Here top and bottom sides are parallel and distance between them is equal to the height of the banner.

Now substituting the values, we get;

\frac{1}{2}\times24\times(x+14)=372\\\\12(x+14)=372\\\\x+14=\frac{372}{12}\\\\x+14=31\\\\x=31-14=17\ in

Hence The length of the bottom side of the banner is 17 in.

7 0
3 years ago
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