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3 years ago

Can you solve 8/2(2+2)?

Mathematics

2 answers:

Mazyrski [523]3 years ago

8 0

2+2 =4
2x4=8
8 divided by 8 =1

svetlana [45]3 years ago

6 0

Answer:

Step-by-step explanation:

PEMDAS

2+2=4

2*4=8

8/8=1

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Set up an equation and solve the following problem.

nordsb [41]

Answer:

The speed of Dave is 42 miles per hour

The speed of Kent is 46 miles per hour .

Step-by-step explanation:

Given as :

The distance cover by Dave = d = 210 miles

The time taken by Dave = t hour

The speed of Dave = s miph

Again

The distance cover by Kent = D = 230 miles

The time taken by Kent = T hour

The speed of Kent = S = (s + 4 ) miph

For Dave

Time = $\dfrac{\textrm Distance}{\textrm Speed}$

So, t = $\dfrac{\textrm d miles}{\textrm s miph}$

Or, t = $\dfrac{\textrm 210 miles}{\textrm s miph}$

For Kent

Time = $\dfrac{\textrm Distance}{\textrm Speed}$

So, T = $\dfrac{\textrm D miles}{\textrm S miph}$

Or, T = $\dfrac{\textrm 230 miles}{\textrm (s + 4) miph}$

∵ Time taken by both is same

So, t = T

Or, $\dfrac{\textrm 210 miles}{\textrm s miph}$ = $\dfrac{\textrm 230 miles}{\textrm (s + 4) miph}$

Or, 210 × (s + 4) = 230 × s

Or, 210 × s + 210 × 4 = 230 × s

Or, 210 × 4 = 230 × s -210 × s

Or, 210 × 4 = 20 × s

∴ s = $\dfrac{840}{20}$

i.e s = 42 miph

So, The speed of Dave = s = 42 miles per hour

Again

The speed of Kent = S = (s + 4 ) miph

i.e S = 42 + 4

or, S = 46 miph

So, The speed of Kent = S = 46 miles per hour

Hence,The speed of Dave is 42 miles per hour

And The speed of Kent is 46 miles per hour . Answer

8 0

3 years ago

Which of the points is on a line with positive slope?

zaharov [31]

(5,0) and (8,4)

it’s the only one when graphed that the line (from left to right) goes up,

6 0

3 years ago

The number and frequency of a certain ocean's hurricanes annually from 1930 through 2005 is shown below. This means, for instanc

dexar [7]

Answer:

Shown below.

Step-by-step explanation:

The table showing the umber and frequency of a certain ocean's hurricanes annually from 1930 through 2005 is:

Number: 0 1 2 3 4 5 6 7 8 11 12

Frequency: 5 16 20 14 3 5 4 4 2 1 1

The probability of an events, say E is the ratio of the number of favorable outcomes to the total number of outcomes.

$P(E)=\frac{n(E)}{N}$

Compute the probabilities of 0 - 12 hurricanes each season as follows:

Number Frequency Probability

0 5 0.07

1 16 0.21

2 20 0.27

3 14 0.19

4 3 0.04

5 5 0.07

6 4 0.05

7 4 0.05

8 2 0.03

11 1 0.01

12 1 0.01

Total 75 1.00

7 0

3 years ago

Farmer grows 128 red tomato plants and 102 yellow tomato plants. each plant produces about 32 tomatoes.

AlekseyPX

1: 128+102= 230
2: 230x32= $7360

3 0

3 years ago

Read 2 more answers

Determine the type and number of solutions of 4x^2-5x+1=0.

Arlecino [84]

4x² - 5x + 1 = 0
a = 4; b = - 5, c = 1
Δ = b² - 4.a.c
Δ = (-5)² - 4.4.1
Δ = 25 - 16
Δ = 9

x = - b ± √Δ / 2.a
$x = \frac{-5\± \sqrt{9} }{2*4}$
$x = \frac{-5\±3}{8}$
$x' = \frac{-5-3}{8} = \frac{-8}{8} = -1$
$x' = \frac{-5+3}{8} = \frac{-2}{8} (\div2) = \frac{-1}{4}$

A. Two real solutions (x' = -1 and x'' = -1/4)

4 0

3 years ago