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Anastasy [175]
3 years ago
9

Last night, Roberto spent 90 minutes doing homework, infinity symbol hour reading, and 540 seconds making his lunch for the next

day. How many more minutes did Roberto spend doing homework than he did reading and making his lunch?
A) 81 minutes
B) 50 minutes
C) 49 minutes
D) 41 minutes
Mathematics
2 answers:
Crazy boy [7]3 years ago
7 0
41 mins hope this helps
Margarita [4]3 years ago
6 0

Answer:

41 minutes

Step-by-step explanation:

We are given;

Time spent on homework = 90 minutes

Time spent reading = 2/3 hours = 2/3 × 60 minutes = 40 minutes

Time spent making lunch = 540 seconds = 540/60 minutes = 9 minutes

We want to find how many more minutes Roberto spent doing homework than he did reading and making his lunch.

Thus;

Time spent on reading and making lunch = 40 + 9 = 49 minutes

Hence, the word "how many more" means we will subtract 49 from 90.

So, "how many more minutes" = 90 - 49 = 41 minutes

Step-by-step explanation:

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Please help me thank you I’ll mark Brainly
Phoenix [80]

Answer:

276

Step-by-step explanation:

60 feet plus 3 is 63, 63 times 2 is 126, 126 +150 is 276

6 0
3 years ago
Find the perimeter of the figure to the nearest hundredth.<br><br><br> Ps: it is not 30
frutty [35]

Answer:

Perimeter = 36.8 ft

Step-by-step explanation:

<u>Step 1:  Add the straight sides together</u>

3+3+3+3+3+3 = 18 ft

<u>Step 2:  Find the perimeter of the semi-circles</u>

The formula for the perimeter of semi-circle:  1/2 π × d

Diameter = 12 - 3 - 3 = 6, because the whole length is 12 minus the 6 ft of other stuff.

Now, 1/2π * 6 = 9.4 ft

But, there are two semi-circles so it will be 9.4 + 9.4 = 18.8 ft

<u>Step 3:  Add all of them</u>

18 + 18.8 = 36.8 ft

8 0
3 years ago
Which of the following accurately lists all discontinuities of the function below?
jeka94
Checking the <span>discontinuity at point -4
from the left f(-4) = 4
from the right f(-4) = (-4+2)² = (-2)² = 4
∴ The function is continues at -4
</span>
<span>Checking the <span>discontinuity at point -2
from the left f(-2) = </span></span><span><span>(-2+2)² = 0
</span>from the right f(-2) = -(1/2)*(-2)+1 = 2
∴ The function is jump discontinues at -2
</span>
<span>Checking the <span>discontinuity at point 4
from the left f(4) = </span></span><span><span>-(1/2)*4+1 = -1
</span>from the right f(4) = -1
but there no equality in the equation so,
</span><span>∴ The function is discontinues at 4

The correct choice is the second
point </span>discontinuity at x = 4 and jump <span>discontinuity at x = -2</span>



5 0
3 years ago
Read 2 more answers
Which point represents the origin?
yanalaym [24]
The answer is B) T! Hope this helps!
4 0
3 years ago
Solve x+12/x+4=×/x+8
Morgarella [4.7K]
Cross multiply...
Thus,
x(x+4)=(x+12)(x+8)
expand...
x^2+4x=x^2+8x+12x+96
Simply both sides of the equation.
x^2+4x=x^2+20x+96
simply further by adding ask like terms...
-16x=96
Solve for x by making x the subject.
therefore
x=-6.
3 0
3 years ago
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