Kayla's Science Project Quiz#1

Explanation
The given equation is 29 + 59. When we add these two numbers, we get the sum of 88. Therefore, the correct answer is 88.

Explanation
The given equation is a simple addition problem where the numbers 44, 29, and 73 are added together. When we add these numbers, we get a sum of 146.

Explanation
The correct answer is 4860. The subtraction problem involves subtracting 1945 from 6805. When subtracting, we start with the ones place and subtract 5 from 5, which equals 0. Moving to the tens place, we have 0 minus 4, which requires borrowing from the hundreds place. The hundreds place becomes 7 minus 1, which equals 6. Finally, in the thousands place, we have 6 minus 9, which requires borrowing from the ten thousands place. The ten thousands place becomes 6 minus 1, which equals 5. Therefore, the result is 4860. The additional answer, 4,860, is just the same number written with a comma for readability.

Explanation
The equation (2 x 2) x 9 simplifies to 4 x 9, which equals 36.

Explanation
The given equation is asking for the product of 64 and 5. To find the answer, we multiply 64 by 5, which equals 320.

Explanation
The multiplication of 33 and 12 is equal to 396.

Explanation
There are 60 seconds in a minute. Therefore, to convert minutes to seconds, we multiply the number of minutes by 60. In this case, 4 minutes multiplied by 60 equals 240 seconds.

Explanation
The question is asking for the equivalent of 5 yards in feet. Since 1 yard is equal to 3 feet, we can calculate that 5 yards would be equal to 15 feet. Therefore, the correct answer is 15 feet or 15 ft.

Explanation
The given equation is a division problem, where 32 is divided by 4. When we divide 32 by 4, we get the quotient 8. This means that if we distribute 32 into 4 equal groups, each group will have 8 items. Therefore, the answer to the given equation is 8.

Explanation
One fifth of the total projects means that the projects about plants make up 1/5 of the total number of projects. So, if there are 20 projects in total, 1/5 of 20 is equal to 4. Therefore, there are 4 projects about plants.

Explanation
The given question asks to add the fractions 2/7 and 3/7. When we add these fractions, the numerator (2 + 3) remains the same and the denominator (7) also remains the same. Therefore, the sum of 2/7 and 3/7 is 5/7.

Explanation
The given equation is a subtraction problem where 5.4 is subtracted by 1.4. The difference between these two numbers is 4. Therefore, the correct answer is 4. It can also be expressed as 4.0, since both 4 and 4.0 represent the same numerical value.