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grigory [225]
3 years ago
13

There are 99 males and 121 females participating in a marathon. What percent of the participants are female? Enter your answer i

n the box​
Mathematics
1 answer:
Hoochie [10]3 years ago
6 0

Answer:

55.

Step-by-step explanation:

121 is what percent of 220? = 55.

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Joe is using the function E= 1.89x + 2.89y to minimize his expenses when selling
stepan [7]

Answer:

(d)\ \$13.34

Step-by-step explanation:

Given

E = 1.89x + 2.89y -- Objective function

Constraints:

2x + y > 10

x + 2y > 8

x,y>0

Required

Minimum value of E

To do this, we apply graphical method

See attachment for plots of 2x + y > 10 and x + 2y > 8

From the attached plot, the point that satisfy x,y>0 is:

(x,y) = (4,2)

So, we have:

E = 1.89x + 2.89y

This gives:

E =1.89 * 4 + 2.89 * 2

E =7.56 + 5.78

E =13.34

7 0
2 years ago
Find side length of a square that has an area of 169 Square inches
ivolga24 [154]
13 inches is the length of 1 side.  You find this by doing to square root of 169.
6 0
3 years ago
Please help I was out this day and this assignment is late
sammy [17]

Answer:

10. ( 7x + 2 ) × ( 5x + 1 )

Step-by-step explanation:

1. 35x² + 10x + 7x + 2

2. 5x × ( 7x + 2 ) + 7x + 2

3. ( 7x + 2 ) × ( 5x + 1 )

4 0
3 years ago
Read 2 more answers
Tell me please !!!!!!
UkoKoshka [18]

Answer:

(1)

Donna = Pounds 180

Kyra = Pounds 240

(2)

Kelly = Pounds 225

Nelly = Pounds 175

Step-by-step explanation:

(1)

Donna = x

Kyra = x + 60

If Donna spends 1/3 of her money she is left with 2/3 of her money;

2/3 x

Kyra now has twice as much money as Donna can be represented as;

X + 60 = 2 * 2/3 x

X + 60 = 4/3 x

(x + 60)3 = 4x

3x + 180 = 4x

180 = 4x – 3x

180 = x

Donna = 180

Kyra = 180 + 60 = 240

(2)

Kelly = x

Ned = y

Kelly spends 40% of her money. Therefore he is left with 60%;

60/100 x

Nelly spends Euros 40 of his money. Therefore he is left with;

y- 40

If they now have the same amount of money;

60/100 x = y – 40

3/5 x = y – 40

3x = 5y – 200

3x – 5y = -200

Remember Kelly & Ned has Euros 400 in total;

x + y = 400

Now we can solve the simultaneous equation by substitution;

x + y= 400

3x – 5y = -200

3x + 3y = 1200

-

3x – 5y = - 200

=

8y = 1400

Y = 175

X = 225

Kelly = 225

Nelly = 175

Learn More:

brainly.com/question/2273184

brainly.com/question/11876335

#LearnWithBrainly

3 0
3 years ago
Read 2 more answers
Find the value of X in the triangle.<br><br> Please explain. Thanks.
Anna [14]
29°

triangles can only have 180°

This is a right triangle, so one angle is 90°, leaving us with 90° left

90°-61°= 29°
4 0
3 years ago
Read 2 more answers
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