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vampirchik [111]
3 years ago
15

Translate the sentence into an equation. The sum of 4 times a number and 7 equals 3

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
4 0

Answer:

4x + 7 = 3

Step-by-step explanation:

let the number be x

4 times x = 4x

sum of 4x and 7 = 4x + 7

Sum of 4x  + 7 is 3 becomes;

4x + 7 = 3

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Geometry math question
lawyer [7]

Supplementary angles add up to 180

so (2x + 3) + (3x + 2) = 180

.

<u>Solve x:</u>

2x + 3 + 3x + 2 = 180

5x + 5 = 180

5x = 175

x = 35

.

<u>Find the angles:</u>

One angle = (2x + 3) = 2(35) + 3 = 73°

Other angle = (3x + 2) = 3(35) + 2 = 107°

.

Answer: The two angles are 73° and 107°

4 0
3 years ago
Read 2 more answers
Joe wants to use the Hiking Club's funds to purchase new walking sticks for each of its 19 members. The sticks cost $26 each. Th
atroni [7]
It's not enough money. they need 14 extra dollars to get all 19 a walking stick.
5 0
4 years ago
Hubert has 45 coins. His brother has more than 59 coins. How many coins do they have altogether?
expeople1 [14]
The correct answer is C
5 0
3 years ago
A watermelon is launched from a 25-foot tall platform at a carnival. The watermelon's height h (in feet) at time t seconds can b
Nataly [62]

Answer:

The maximum height of the watermelon is 74 feet.

Step-by-step explanation:

The watermelon reaches its maximum height when its velocity is zero. Mathematically speaking, velocity is the first derivative of the function height, that is:

v(t) = \frac{d}{dt} h(t) (1)

Where v(t) is the velocity, in feet per second.

If we know that h(t) = -16\cdot t^{2}+56\cdot t +25 and v(t) = 0\,\frac{ft}{s}, then the time associated with maximum height is:

v(t) = -32\cdot t +56 (2)

-32\cdot t + 56 = 0

t = 1.75\,s

Now we evaluate the function height at time found in the previous step: (t = 1.75\,s)

h(t) = -16\cdot t^{2}+56\cdot t +25

h(1.75) = 74\,ft

The maximum height of the watermelon is 74 feet.

5 0
3 years ago
Which equation represents the relationship between the angles in the figure?
Svetach [21]

The options are;

A) b + c = 90

B) 90 + c = 180

C) b + c = 180

D) 42 + b = 150

Answer:

C) b + c = 180

Step-by-step explanation:

From angle theorems, we know that sum of angles on a straight line is 180°

Now, c and 42° form a straight line.

Thus;

c + 42 = 180°

c = 180 - 42

c = 138°

Similarly b and c form a straight line and so;

b + c = 180°

From the given options, the only correct one is Option C.

4 0
3 years ago
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