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3 years ago

Jenna’s backpack weight 12.09 pounds. Kara’s backpack weighted 15.3 pounds. How much heavier was Kara’s backpack?

Mathematics

2 answers:

Katena32 [7]3 years ago

7 0

15.3 pounds - 12.9 pounds = 3.21

PIT_PIT [208]3 years ago

6 0

Answer:

3.21 pounds

Step-by-step explanation:

15.3 - 12.09 = 3.21

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A fort had enough food for 120 soldiers for 200 days. After 5 days 30 soldiers leave the for . How long will the remaining food

liubo4ka [24]

Answer:

The answer is 260 days.

Step-by-step explanation:

120 Men - 195 days (provision left after 5 days)

30 men left the fort

Men left - 90 Days - D

so 120 x 195 = 90 x D

D= 260 days

Hope you find this useful!

7 0

3 years ago

C and D are complementary. The measure of C is (4x) degrees and the measure of K is 26 degrees. What is the value of x?

Semmy [17]

Answer:

Step-by-step explanation:

Complementary angles are angles which add to 90 degrees. This means 4x + 26 = 90. Solve for x using inverse operations in the equation.

4x+26 = 90

4x = 64

x = 16

4 0

3 years ago

What is the value of the missing variable?<br> 2x+4 = 20

Gemiola [76]

Answer:

the answer is X=8

Step-by-step explanation:

2(8)+4=20

3 0

3 years ago

Read 2 more answers

There are 7/8 killograms of salt in the kitchen. Mrs. Reyes uses 2/3 of salt when preparing dinner . How much salt did she use

valentinak56 [21]

7/8•7/15 = 49/120 that the answer

7 0

3 years ago

A researcher wishes to conduct a study of the color preferences of new car buyers. Suppose that 50% of this population prefers t

Thepotemich [5.8K]

Answer:

The probability that exactly 12 buyers would prefer green

=0.00555

Step-by-step explanation:

We are given that

p=50%=50/100=0.50

n=14

We have to find the probability that exactly 12 buyers would prefer green.

q=1-p

q=1-0.50=0.50

Using binomial distribution formula

$P(X=x)=nC_r p^r q^{n-r}$

$P(x=12)=14C_{12}(0.50)^{12}(0.50)^{14-12}$

$P(x=12)=14C_{12}(0.50)^{12}(0.50)^2$

$P(x=12)=14C_{12}(0.50)^{14}$

$P(x=12)=\frac{14!}{12!2!}(0.50)^{14}$

$P(x=12)=\frac{14\times 13\times 12!}{12!2\times 1}(0.50)^{14}$

$P(x=12)=91\cdot (0.50)^{14}$

$P(x=12)=0.00555$

Hence, the probability that exactly 12 buyers would prefer green

=0.00555

3 0

3 years ago