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Strike441 [17]
3 years ago
7

Evaluate 14(7) -d 2f when d = 2 and f = 4

Mathematics
2 answers:
vesna_86 [32]3 years ago
6 0

Answer:

98 - 2  \times 2 \times 4 =  \\ 98 - 16 \\ 82

N76 [4]3 years ago
6 0

Step-by-step explanation:

98 - 3 * 2 * 4 equal to 9 - 2 * 840 + 9 - 6 equal to -7

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What's the area of this
ozzi
5.5cm × 20cm = 110cm²
4.5cm × 20cm = 90cm²

110cm² + 90cm² = 200cm²
7 0
3 years ago
Consider the expression 8 – 4 / 2. One student says the answer is 2 and another says it is 6. Which student is correct? Explain
Liula [17]

Answer:

It is 6. The student who got a two did not use order of operations.

Step-by-step explanation:

PEMDAS

You must do division before subtraction. 4/2 = 2.

8 - 2 = 6

8 0
4 years ago
8. The sum of two numbers is 8 less than twice the first number. Their difference is 4 less than twice
Delicious77 [7]

Answer:

14 and 6

Step-by-step explanation:

Let's start by naming the first number x.

We can name the second number y.

We can set up equations to model our situation.

x+y=2x-8

x-y=2y-4

Let's simplify the equations.

x+y=2x-8

Subtract 2x from both sides

-x+y=-8

__________

x-y=2y-4

Subtract 2y from both sides.

x-3y=-4

Add the two equations together to eliminate x.

x-3y=-4

-x+y=-8

________

0x-2y=-12

-2y=-12

Divide both sides by -2.

y=6

The second number is 6.

Plug that back in.

x+6=2x-8

Subtract x from both sides

6=x-8

Add 8 to both sides

x=14

The first number is 14

7 0
4 years ago
Each student wrote a two-step equation. Peter wrote the equation 4x-2=10, and Andres wrote the equation 16x-8=40. The teacher lo
natima [27]
Both variables (x) are 3.

4×3=12
12-2=10

16×3=48
48-8=40

3 fits the variable of the missing number.
8 0
3 years ago
I don't get it plz help
Salsk061 [2.6K]
Just use the order of operations. PEMDAS, parentheses, exponents, multiplication, division, addition and subtraction.

In the first problem 2 + 6*3^2, there are no parentheses, so next would be exponents.
There is an exponent so you do that first.
3^2 = 9

Now we have 2 + 6*9
Multiplication is next and it is in the problem, so we do 6*9 = 54
So now we have 2 + 54 which equals 56.
6 0
4 years ago
Read 2 more answers
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