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SWEET T HAS 2 ORANGE PICKS FOR EVERY 5 GREEN. IF THERE ARE 21 PICKS IN ALL, HOW MANY PICKS ARE ORANGE?

IrinaVladis [17]

Answer:

For 21 picks, there are 6 orange

Step-by-step explanation:

orange: green : total

2 5 2+5

2 5 7

If there are 21 picks, we need to divide by 7 to see how many times we need to multiply

21/7 = 3

Multiply everything by 3

orange: green : total

2*3 5*3 7*3

6 15 21

For 21 picks, there are 6 orange

6 0

2 years ago

When the solution of x2 − 9x − 6 is expressed as 9 plus or minus the square root of r, all over 2, what is the value of r? x equ

jarptica [38.1K]

Answer:

r = 105

Step-by-step explanation:

Given quadratic equation:

x² − 9x − 6

Quadratic formula is given by:

(-b ± √b² - 4ac) ÷ 2a

For the equation: x² - 9x - 6

a = 1, b = -9 and c = -6

Substitute in the quadratic formula:

(-b ± √b² - 4ac) ÷ 2a

(-(-9) ± √(-9)² - 4(1*-6)) ÷ 2*1

= 9 ± √105 / 2

The solution of x² − 9x − 6 is expressed as 9 plus or minus the square root of r, all over 2

Therefore, the value of r is 105

4 0

3 years ago

Does anybody know any of these work needs to be shown answer ASAP

fenix001 [56]

#30 and #31 are in y = mx + b. m = slope, and b = y-intercept.
30. slope = 2/3 y-intercept = 1
31. Slope = -9/5 y-intercept = -4
To make the x's get on the right side of the equal sign, subtract it on both sides.
32. 6x - y = -2
32. 6x - y - 6x = -2 - 6x
32. y = 6x - 2

5 0

2 years ago

"Harry had 500 pennies in a jar. He sorted the pennies into 25 different stacks. Each stack had the same number of pennies. How

nikdorinn [45]

Answer:

20

Step-by-step explanation:

To find out how many pennies were in each stack, you would have to divide 500 by 25. This gives you 20.

8 0

3 years ago

Read 2 more answers

At 3:00 PM a man 138 cm tall casts a shadow 149 cm long. At the same time, a tall building nearby casts a shadow 163 m long. How

Andre45 [30]

The building is 151 meters tall

<h3>How to determine the height of the building?</h3>

From the question, we have the following parameters about the building and the man

Man's height = 138 cm

Man's shadow = 149 cm

Building's shadow = 163 m

Based on the above parameters, we have the following equivalent ratio:

Ratio = Height : Shadow

So, we have:

Man's height : Man's shadow = Building's height : Building's shadow

Substitute the known values in the above equation

138 cm : 149 cm = Building's height : 163 m

Remove the units

138 : 149 = Building's height : 163

Express as fraction

138 /149 = Building's height/163

Multiply both sides by 163

Building's height = 163 * 138 /149

Evaluate the product

Building's height = 151 m

Hence, the building is 151 meters tall

So, the complete parameters are:

Man's height = 138 cm

Man's shadow = 149 cm

Building's shadow = 163 m

Building's height = 151 m