6 of 246 of 24 Items

Question
On a Friday morning, the temperature was 67 °F
. The temperature dropped 6 °F
and then rose 10 °F
. How much does the temperature need to rise or fall to return to the initial temperature of 67 °F
?

Desmos Scientific Calculator

(1 point)
Responses

Fall 4 °F
Fall 4 °F

Rise 6 °F
Rise 6 °F

Fall 10 °F
Fall 10 °F

Rise 4 °F

9 answers

To find out how much the temperature needs to rise or fall to return to the initial temperature of 67 °F, let's follow the changes step by step:

  1. Starting temperature: 67 °F
  2. Temperature drops by 6 °F: \[ 67 °F - 6 °F = 61 °F \]
  3. Temperature rises by 10 °F: \[ 61 °F + 10 °F = 71 °F \]

Now, we need to determine how to return to the starting temperature of 67 °F from the current temperature of 71 °F: \[ 71 °F - 67 °F = 4 °F \]

Since the current temperature is above the initial temperature, it needs to fall to return to 67 °F.

Thus, the temperature needs to fall 4 °F.

The correct response is: Fall 4 °F.

|−7|+|6|=

To solve the expression \(|-7| + |6|\), we need to find the absolute values of the numbers:

  1. \(|-7| = 7\) (the absolute value of -7 is 7).
  2. \(|6| = 6\) (the absolute value of 6 is 6).

Now, we can add these two absolute values together:

\[ |-7| + |6| = 7 + 6 = 13 \]

So, \(|-7| + |6| = 13\).

The Snake Eyes Roller Coaster climbs 125 feet from ground level then drops 60 feet before climbing another 135 feet. How far does the coaster need to drop or climb to be back at ground level?

Desmos Scientific Calculator

(1 point)
Responses

drop 50 feet
drop 50 feet

drop 200 feet
drop 200 feet

climb 50 feet
climb 50 feet

climb 200 feet

Let's analyze the changes in height of the Snake Eyes Roller Coaster step by step:

  1. The coaster starts at ground level (0 feet).
  2. It climbs 125 feet: \[ 0 + 125 = 125 \text{ feet} \]
  3. It drops 60 feet: \[ 125 - 60 = 65 \text{ feet} \]
  4. It climbs 135 feet: \[ 65 + 135 = 200 \text{ feet} \]

Now, the current height of the coaster is 200 feet. To get back to ground level (0 feet), it needs to drop down from 200 feet:

To find out how far the coaster needs to drop: \[ 200 - 0 = 200 \text{ feet} \]

Thus, the coaster needs to drop 200 feet to return to ground level.

The correct response is: drop 200 feet.

9 of 249 of 24 Items

Question
Before it started to rain, Amnar cut 16
of the grass and Aayush cut 13
of the grass. Which statement is true?

Desmos Scientific Calculator

(1 point)
Responses

The boys cut almost the whole yard.
The boys cut almost the whole yard.

Together the boys cut three-fourths of the yard.
Together the boys cut three-fourths of the yard.

The boys cut exactly half of the yard.
The boys cut exactly half of the yard.

Together the boys did not cut half of the yard.

To find out how much of the yard Amnar and Aayush cut together, we need to add the fractions of grass they each cut:

  • Amnar cut \( \frac{16}{1} \) (which is essentially the whole yard, or 100%).
  • Aayush cut \( \frac{13}{1} \).

Now, if we add these fractions: \[ \frac{16}{1} + \frac{13}{1} = \frac{16 + 13}{1} = \frac{29}{1} \]

However, since this doesn't make sense because the total yard cannot exceed \( \frac{16}{1} + \frac{13}{1} \) unless both boys are cutting separate portions of the grass, let’s consider some reasonable assumptions.

Given that both fractions (16 and 13) are likely to represent portions of a whole yard when interpreted correctly, let’s assume the intended problem is about cutting parts of a yard represented as \( \frac{3}{4} \) of the total yard instead.

Now let’s analyze the options closely:

  1. The boys cut almost the whole yard. - This could imply they cut around 1 whole yard which is likely not true since they cut portions.

  2. Together the boys cut three-fourths of the yard. - If \( \frac{16}{16} + \frac{13}{16} = \frac{29}{16} \), that yields more than 1 which is incorrect.

  3. The boys cut exactly half of the yard. - Incorrect because they collectively cut \( \frac{29}{16} \) which is more than that.

  4. Together the boys did not cut half of the yard. - This statement holds since they cut much more than half.

Given that:

If fractions exist to cut yard portions they likely belong to, thus the last option is the most plausible because together they amount to exceeding half of total yardage.

Hence, the correct response is: Together the boys did not cut half of the yard.

Sweet Surprise Bake Shop sold slices of cake at the arts festival last weekend. Each cake was cut into eight slices. They sold 214
chocolate cakes, 212
red velvet cakes, 34
of a carrot cake and 312
sugar cream cakes. What is the total number of cakes sold?

Desmos Scientific Calculator



(1 point)
Responses

9 cakes
9 cakes

812
cakes
8 and 1 half cakes

712
cakes
7 and 1 half cakes

767
cakes
7 and 6 sevenths cakes
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To find the total number of cakes sold, we need to calculate the total for each type of cake and then sum them up.

  1. Chocolate cakes sold: 214
  2. Red velvet cakes sold: 212
  3. Carrot cakes sold: 34
  4. Sugar cream cakes sold: 312

Now, let's add these numbers together:

\[ 214 + 212 + 34 + 312 \]

Calculating step by step:

  1. \( 214 + 212 = 426 \)
  2. \( 426 + 34 = 460 \)
  3. \( 460 + 312 = 772 \)

So, the total number of cakes sold is 772 cakes.

Reviewing the provided responses:

  • 9 cakes
  • 8 and 1 half cakes
  • 7 and 1 half cakes
  • 7 and 6 sevenths cakes

It appears none of the options exactly match 772 cakes. Please double check the context or values in case there is additional information or modifications in question.

The calculated total is 772 cakes.