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3 years ago

Evaluate 5c-3d + 11 when c= 7 and d = 8.

Mathematics

1 answer:

Sindrei [870]3 years ago

4 0

the Answer is 22 if that helpes :)

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30 pts!! In an online game you are rewarded with 20 points each day you log on and 5 dollars. You are trying to raise 1,420 poin

stira [4]

Answer: 66

Step-by-step explanation:

20 points per day is the rate, 100 points is the intial amount, and 1420 points is the total.

Use the formula: y = mx + b

y is the total
m is the rate
b is the initial amount

1420 = 20x + 100 plugged the values into the equation

1320 = 20x subtracted 100 from both sides

66 = x divided both sides by 20

4 0

3 years ago

Read 2 more answers

Solve the inequality.

Alenkasestr [34]

Answer:

 $x \leqslant - 3$ 

option C is the right option.

Solution,

$\frac{x}{3} - \frac{x - 1}{2} \geqslant 1 \\ = \frac{2x - 3( x - 1)}{6} \geqslant 1 \\ = \frac{2x - 3x + 3}{6} \times 6 \geqslant 6 \\ = 2x - 3x + 3 \geqslant 6 \\ = - x + 3 \geqslant 6 \\ = - x + 3 - 3 \geqslant 6 - 3 \\ = - x \geqslant 3 \\ = - ( - x) \leqslant - 3 \\ = x \leqslant - 3$

hope this helps...

Good luck on your assignment

5 0

4 years ago

Read 2 more answers

In the picture lines AB and CD are parallel. Find the measures of

jasenka [17]

Answer/Step-by-step explanation:

1. <ABC and <BCD are alternate interior angles. Alternate interior angles are equal, therefore, since m<ABC = 38°, then m<BCD = 38°

2. m<ECF = m<BCD (corresponding angles)

m<ECF = 38° (substitution)

3. m<DCF + m<ECF = 180° (linear pair)

m<DCF + 38° = 180° (substitution)

m<DCF = 180° - 38° (Subtraction property of equality)

m<DCF = 142°

8 0

3 years ago

999999999999999 times 999999999999999

exis [7]

Answer:

1e+30

Step-by-step explanation:

i used a calculator soooooo

3 0

2 years ago

Read 2 more answers

AlekseyPX

Answer:

$2403\:\mathrm{m}$

Step-by-step explanation:

We can form a right triangle and use trigonometry for a right triangle to solve this. The ground distance the plane travels is its displacement in the x-direction. The 2500 meters the plane moves through represents the hypotenuse of right triangle, and the ground distance is the adjacent leg of the $16^{\circ}$ angle. Therefore, we set up the following equation:

$\cos 16^{\circ}=\frac{x}{2500}$ , where $x$ is the ground distance.

Solving, we get $x=2500\cdot \cos 16^{\circ} \approx \fbox{$2403\:\mathrm{m}$}$ .

6 0

3 years ago