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3 years ago

Please help me please!!!!!!!

Mathematics

1 answer:

Iteru [2.4K]3 years ago

8 0

The answer would be a because that would be the value

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Gemma recently rode her bicycle to visit her friend who lives 6 miles away. On her way there, her average speed was 16 miles per

DochEvi [55]

first speed --- x mph

return speed -- x+16 mph

6/x + 6/(x+16) = 1

times each term by x(x+16)

6(x+16) + 6x = x(x+16)

x^2 + 4x - 96 = 0

(x-8)(x+12) = 0

x = 8 or x is a negative

her first speed was 8 mph

her return speed was 24 mph

check:

6/8 + 6/24 = 1 , that's good!

8 0

2 years ago

Heather has divided $5900 between two investments, one paying 9%, the other paying 4%. if the return on her investment is $3

Leni [432]

Heather invested $2,200 at 9% and invested $3,700 at 4%

What represents the amount invested in each asset?

The amount invested at 9% can be represented as x whereas the balance invested at 4% is (5900-x), as a result, the interest earned on each is computed thus:

Interest 9%=x*9%

interest at 9%=0.09x

Interest at 4%=(5900-x)*4%

interest at 4%=236-0.04x

Total interest=0.09x+236-0.04x

total interest=0.05x+236

Total interest earned=346

346=0.05x+236

346-236=0.05x

110=0.05x

x=110/0.05

x=$2,200(invested at 9%)

amount invested at 4%=5900-2200

amount invested at 4%=$3,700

Find out more about simple interest on:brainly.com/question/14214349

#SPJ1

3 0

1 year ago

The ones that are circled I need help with! I need this by tomorrow!

Korvikt [17]

1) you need to shade in that last square then draw another 3squares together and shade in 2
3) 3 3/10
5) 13/3
7) 71/8

3 0

3 years ago

A right triangle has side lengths 7, 24, and 25 as shown below.

Hoochie [10]

Answer: Tan B = 0.2917 (16.26 degrees)

Sin B = 0.2800 (16.26 degrees)

Cos B = 0.9600 (16.26 degrees)

Step-by-step explanation: Please refer to the picture attached for details.

The right angled triangle LNB has been drawn with the sides labeled as 7, 24 and 25 as indicated. With angle B as the reference angle, we can now identify each side as follows;

Side 7 (opposite, facing the reference angle)

Side 24 (adjacent, between the reference angle and the right angle)

Side 25 (hypotenuse, facing the right angle).

Hence, using the trigonometric ratios,

Tan B = opposite/adjacent

Tan B = 7/24

Tan B = 0.2917 (16.26 degrees)

Sin B = opposite/hypotenuse

Sin B = 7/25

Sin B = 0.2800 (16.26 degrees)

Cos B = adjacent/hypotenuse

Cos B = 24/25

Cos B = 0.9600 (16.26 degrees)

3 0

3 years ago

6. Z1 and 22 are vertical angles. If the<br> measure of Z2 is 105°, find the measure of

Rashid [163]

Answer:

Z1 is also 105°

Step-by-step explanation:

this is because vertical angles are always equal

3 0

2 years ago