Second grade homework easy!!!! Plz answer 15 points


Thx

The price of Sam's new bike is given by $260.

Percentage is a mathematical measurement of any number or quantity out of 100.

Let the price of Sam's new bike be x.

Sam' parent paid 25% of the cost.

So they paid = x*(25/100) = 25x/100

Now it is also given that the exact amount paid by his parent is $65.

Then according to the question,

25x/100 = 65

25x = 65*100

25x = 6500

x = 6500/25

x = 260

Hence the price of Sam's new bike is $260.

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It did not rain on 12 out of the 30 days in April, which means it was rain-free 40% of the time.

The student asked, "It rained 18 days during April, what percentage of days did it not rain during April?" To calculate the percentage of days it did not rain, first determine the total number of days in April, which is 30. Then subtract the number of days it rained (18) from the total number of days to find the number of days it did not rain:

30 days (total in April) - 18 days (rain) = 12 days (no rain)

Next, divide the number of days it did not rain by the total number of days in the month and multiply by 100 to get the percentage:

(12 days no rain / 30 days total) * 100 = 40%

Therefore, it did not rain 40% of the time during April.

In Evan's experiment, the independent variable is the type of toothpaste Evan uses, while the dependent variable is the cleanliness of Evan's teeth.

In Evan's experiment, the independent and dependent variables can be determined based on their definitions. The independent variable is the one that is intentionally varied by the researcher. In this case, it's the type of toothpaste that Evan uses each day. On the other hand, the dependent variable is the one that the researcher measures to see if it changes alongside the independent variable. Here, it is the cleanliness of Evan's teeth as measured by the closeup plaque and water test.

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To meet the goal of earning at least $200 for the week, given a flat rate of $75 and $10 per sale, you need to solve the inequality 75 + 10x ≥ 200. After solving, it's found that you need to make at least 13 sales.

To solve the inequality problem we need to set up an equation based on the given conditions. You are paid a flat rate of $75 per week plus $10 per sale. If your goal is to make at least $200 this week, we can write the inequality as follows:

75 + 10x [tex]\geq[/tex] 200
Where x represents the number of sales you need to make. Now, we solve for x:

Subtract 75 from both sides: 10x ≥125

Divide both sides by 10: x ≥ 12.5

Since you cannot make half a sale, you need to make at least 13 sales to meet your goal of earning $200 for the week.

The ham and cheese omelet costs $ 1. 40 more than the cheese omelet.

How to find the difference in cost ?

When a question asks to find the cost of something more than another thing, this means that you should find the difference between the original item and the item it is being compared to.

This means that the amount the ham and cheese omelet costs over the cheese omelet is:

= Cost of ham and cheese omelet - Cheese omelet cost

= 4. 95 - 3. 55

= $ 1. 40

In conclusion, the cheese omelet costs $ 1. 40 less than the ham and cheese omelet.

Answer with explanation:

The Vertices of Rectangle are,A (2, 3), B(9, 3), C(9, -2), and D(2, -2).

Area of Rectangle = Length × Breadth

[tex]\text{Use Distance formula to find distance between two points}=\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}}\\\\\text{Length}=\sqrt{(9-2)^2+(3-3)^2}=\sqrt{7^2}=7\\\\\text{Breadth}=\sqrt{(9-9)^2+(-2-3)^2}=\sqrt{(-5)^2}=\sqrt{5^2}=5[/tex]

So, Area of Rectangle = 7 × 5

                      = 35 square units

The numerical form of the number is 2310.

Mathematical expression is the combination of numerical variables and operations denoted by addition, subtraction, multiplication, and division signs. The precise position of a number within a series is assigned a value by a place-value system.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that the number 2 hundred 3 tens x 10 is in the place value form the mathematical expression for the number is:-

2 hundred 3 tens x 10 ⇒ 2310

Therefore, the numerical form of the number is 2310.

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Final answer:

Desiree can evenly distribute her collection of beads into jars by placing 20 beads of the same color in each jar, as 20 is the greatest common divisor of the quantities of pink, blue, and purple beads she has.

Explanation:

Desiree has a collection of beads in three different colors: 100 pink, 80 blue, and 120 purple. To determine how many beads she can put in one jar, while ensuring each jar contains only one type of bead, we need to find the greatest common divisor (GCD) of the three numbers. The GCD is the largest number that divides each of the numbers without leaving a remainder.

First, list the factors of each amount:

Factors of 100: 1, 2, 4, 5, 10, 20, 25, 50, 100

Factors of 80: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

Factors of 120: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120

From the lists above, the highest number common to all three is 20. Therefore, Desiree can place 20 beads in each jar, ensuring that the jars are equally filled with one type of bead.

We need to divide the number of CDs sold, 3,467, by the number of days, 7

In order to estimate the quotient, we will use compatible numbers.

3,467 is close to 3,500

Remember: Compatible numbers are numbers that are close in value to the actual numbers, and which make it easy to perform mental arithmetic.

Some examples of compatible numbers when doing division are 400 and 10, 36 and 6, 2400 and 12, and 64 and 8

3,500 and 7 are compatible because when doing this division (3,500 ÷7 ), we can quickly divide 35  by 7 to get 5 and put two zeros at the end to get 500

3,500 ÷ 7 = 500  

About 500 CDs were sold each day

To multiply by a two-digit number with regrouping, align the numbers by place value, multiply each digit of the two-digit number by the one-digit number, carry over any tens, and sum the products.

Steps for Multiplying by a Two-Digit Number with Regrouping

To multiply by a two-digit number with regrouping, you can follow these steps:

This method may involve regrouping several times depending on the size of the numbers involved.

The equation that shows that the number increased by negative eight will be n + (-8) = 14. Hence, option C is correct.

Equations are mathematical expressions that have two algebras on either side of an equal (=) sign. The expressions on the left and right are shown to be equal to one another, demonstrating this relationship. L.H.S. = R.H.S. (left-hand side = right side) is a fundamental simple equation.

As per the data given in the question,

Let the number be x.

The number x is increased by negative 8 times which is equal to 14.

Then the equation according to the statement is,

n + (-8) = 14,

Therefore, this concludes that option C is correct.

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To solve the division problem of 3.4 divided by 1,734, one can use a calculator or long division, resulting in a decimal number much smaller than one. This division is akin to dividing by powers of ten, which shifts the decimal point to the left.

The question 'I need to know the problem to 3.4 divided by 1,734' is asking for the result of a division problem involving the numbers 3.4 and 1,734. To solve this, we need to divide 3.4 by 1,734. This can be done using a calculator or by hand using long division. If using a calculator, you simply enter 3.4 divided by 1,734 to obtain the answer.

If you do it by hand, align the numbers and perform the long division process to find the quotient. The result of the division is a decimal number which is significantly less than one, as 3.4 is much smaller than 1,734.

Another example of division involving powers of ten can be seen when we have a number like 1.9436 divided by various powers of 10.

For instance, 1.9436 divided by 10 would be 0.19436, and so on, until we divide by 1,000 to get 0.0019436. This illustrates how division by powers of ten shifts the decimal point to the left.