1. use a commutative law to find an equivlant expression f+sr? sr+f?
2. determine which real number corresponds to the situation. The record high tempature for a date is 97.8 above zero. The cooresponding number for this sentence is 97.8?
3.Translate to an algebric expression. The sum of c and n? c+n?
4. divide if possible -64/-8=-72?
5. divide if possible -90/10=-9?
6. multiply 2/7 by (7/1)=14/7?
7. solve using addition princible.7.4=x-2.5. x=4.9?
8. find the oppisite of 50=-50?
9. add. do not use number line except to check
-7.1+8.7=15.8?
10. a mountian with a base 12,231ft below sea level rises 15,202ft. what is the elevation above sea level of its peaks? 2971?
4 is wrong
simplify 6
7 is wrong
9 is wrong
4. divide if possible -64/-8=8?
7. solve using addition principle.7.4=x-2.5. so that mean x=9.9?
9.add. do not use number line except to check
-7.1+8.7=1.6?
6. how would i simplify 14/7?
14/7 = 2
so the corrected ones were right?
1. To find an equivalent expression for f + sr using the commutative law, we can rearrange the terms. The commutative law for addition states that changing the order of the terms does not change the sum. Therefore, f + sr is the same as sr + f.
2. The real number that corresponds to the situation where the record high temperature is 97.8 above zero is simply 97.8. The sentence states that the temperature is 97.8 above zero, so the corresponding number is 97.8.
3. The algebraic expression for "the sum of c and n" can be translated as c + n. This represents the addition of the variables c and n.
4. To divide -64 by -8, we divide the numerator (-64) by the denominator (-8). The division of two negative numbers results in a positive quotient. Therefore, -64 / -8 = 8.
5. To divide -90 by 10, we divide the numerator (-90) by the denominator (10). The division of a negative number by a positive number results in a negative quotient. Therefore, -90 / 10 = -9.
6. To multiply 2/7 by 7/1, we multiply the numerators (2 * 7) to get the new numerator (14) and multiply the denominators (7 * 1) to get the new denominator (7). Therefore, 2/7 * 7/1 = 14/7.
7. To solve the equation 7.4 = x - 2.5 using the addition principle, we want to isolate x on one side of the equation. We can add 2.5 to both sides of the equation to move the -2.5 to the right side. 7.4 + 2.5 = x. Simplifying, we get x = 9.9.
8. The opposite of 50 is -50. The opposite of a positive number is a negative number with the same magnitude.
9. To add -7.1 and 8.7, we simply add the two numbers together. -7.1 + 8.7 = 1.6. However, it seems there is an error in your statement, as the sum of -7.1 and 8.7 is not equal to 15.8.
10. If a mountain has a base 12,231ft below sea level and rises 15,202ft, the elevation above sea level of its peaks would be the sum of these two values, which is 2971ft.